But has it inadvertently killed off its own all-rounder in the process?

Giant says the new Propel is its lightest yet, so where does that leave its own very popular TCR all-round road bike? Ive ridden the new Liv EnviLiv - the women's version of the Propel - to see how the updates feel on the road

CyclistNew Giant Propel steals TCRs clothes with lighter one-piece construction and high-performance Cadex componentsGiant claims the new Propel is the lightest and fastest version of its aero road bike, with top-tier builds weighing as little as 6.5kg while improving efficiency by 18.4 watts over the old bike.First released in 2013 as an all-out aero bike, the Propel has steadily morphed into Jayco-AlUlas default WorldTour race bike at the expense of the TCR. With its fusion of low weight and drag, the Propel now looks to challenge the likes of the Specialized Tarmac SL8, Trek Madone SLR and Cannondale SuperSix Evo in the all-round road race bike category.In keeping with its conservatism, Giant has eschewed the bayonet forks and oversized head tubes adopted by some aero bike designers. Apart from dropped seatstays and a more streamlined front-end, the Propels truncated ellipse aerofoil shapes are nearly the same as its predecessors.Since the last generation, our finding was that if you go pure aero, you reduce your fan base, says Nixon Huang, Giants road category manager. Most consumers need a bike for almost any kind of riding, not just the flat but rolling hills, even climbs.All three tiers of the Propel benefit from new components that are claimed to be faster and lighter. The Advanced SL tops the range at 10,499 / 11,999 / $13,500 / AU$15,999. The entry-level Advanced costs 2,599 / 2,999 / $3,500.Whats changed?New single mould front triangle shaves 40g off frameset355g total weight reduction18.4 watts in efficiency savingsDropped chainstays, thinner head tube and forkUDH rear dropoutMore front-end and rear-end compliance32mm tyre clearanceWhat hasntMost frame shapesGeometryOversize 1 1/4in steererIntegrated Seatpost on Advanced SLTotal speed systemBy addressing the efficiency of every component, first through computational fluid dynamics and then wind tunnel testing, Giant claims it has made the new Propel Advanced SL 72 seconds faster over 40km at 40kmh than before though obviously thats impossible as 40km at 40kmh would take an hour no matter how aero or unaero the bike is.Looking beyond that and purely at equivalent time saving over that distance at the same power than the theoretical previous effort, that sounds like a dramatic improvement. But when you consider that the previous version came out in 2022 and left low-hanging fruit in the form of a two-piece cockpit and relatively slow tyres to improve on, it seems more feasible.Giant says it hasnt tested the latest Propel against other brands bikes. But it claims that using a pedalling mannequin in the wind tunnel makes its aero testing against the old Propel more accurate. Giant mechanic Andy Wollony, who designed Grischa 2.0, a 3D-printed model rider costing 5,000, says this reduces the margin of error to 0.5 watts compared to the three watts typical of real-rider testing.Giant says it placed Grischa 2.0 on size medium frames. As its legs pedalled, engineers measured linear aero drag and wheel rotating drag at 40kmh over -20 to +20 yaw angles, and rolling resistance at 40kmh under a 42kg load per tyre.The averages of these three measurements were then added together to calculate total system resistance. This was 267.76 watts for the old bike versus 249.32 watts for the new one.Giant says most of these savings come from the components, so it follows that the old frame with the new parts could be nearly or as fast as the new one. The 42cm width of the old Propels handlebar in this test looks distinctly disadvantageous compared to the new aero bar measuring 37cm at the hoods.This doesnt appear to be a stock width, but Giant does offer the one-piece Contact SLR Aero O cockpit in an extensive size range: 3608090mm, 38080140mm, 40090140mm, 42090120mm and 440100120mm.With a claimed weight of 286g in the 420x100mm size, the Contact SLR Aero 0 saves 74g over the previous separate bar and stem. It has a negative 10 stem angle and lengthy reach to facilitate the aero hoods position, a shallow drop to ease the transition to drops and slight flare for stability.Cadex claims the star-shaped aero flanges of the Cadex Max 50 WheelSystem and integrated, bladed carbon spokes cut drag by 2.4 watts compared to the Ultra 50.Designed specifically for these wheels, the updated Cadex Aero tyre uses a more supple casing than before, up from 170tpi to 240tpi, to reduce weight by 55g per tyre and rolling resistance by 2.8 watts in total.Despite introducing tube-specific aero bottle cages on the last Propel, Giant hasnt followed the trend for proprietary aero bottles.Racers grab bottles that are regular bottles, says Giants global product marketing manager, Andrew Juskaitis.So we do have to think about airflow from the wheel over the fork and down tube as well, and how it flows over a regular water bottle. Some integrated aero bottles can be a lot faster, but its just not real. Related Posts Inside Giant's Taiwan factory Giant TCR Advanced Pro road bike review Best road bikes 2026 ridden and reviewed Best aero road bikes 2026 reviewed Minor frame changesThe standout change is to the seatstays, which are now dropped to increase seated compliance by 25%, as requested by Jayco-AlUla riders. Lower seat stays are generally more comfortable because they enable the seat tube and seatpost to flex more. In this case, they also accommodate wider tyres, increasing clearance to 32mm, which the slimmer fork makes possible at the front too.Asked why Giant settled on the squared off shape of the stays, Huang says, Thats more complicated to explain because the riders legs are moving and the wheel is spinning at 40kmh, so that pulls some of the airflow to the front. But also the majority of the air has collapsed around this area so we tried all different shapes to optimise and reduce the drag.You have to look hard to notice minor changes to the front of the bike. Brake calipers are more neatly hidden behind the thinner and sharper edged fork, and the head tube tapers back a touch more sharply, reducing frontal area in order to smooth airflow over the wheel hub.The narrower head tube still leaves room for cables to pass, either through or under the handlebar, beneath the stem and in front of the D-shaped fork steerer into the frame. This semi-integrated design leaves a cable access slot to simplify servicing and routing.One-piece mouldFor the first time, Giant has made the front triangle of the Propel from one piece of carbon fibre from a single bladder or mould, as it did on the latest TCR. Previously the Propel was made from three separate moulds.The frameset weight reduction came mainly from the one-piece molding for the frame, says Huang. Because we can make the whole carbon layer from one piece, there are no joints.Its several frame pieces, the head tube, top tube and down tube, joined together, so theres some overlap with this kind of one-piece moulding. But it allows the engineer to design the layout continuously with no wasted material.The range-topping Advanced SL keeps Giants divisive integrated seatpost. While admitting that the necessity to cut it to your saddle height makes it a pain in the ass for travel and can reduce resale value, Juskaitis says, This is an engineered part of the frame from the tip all the way to the bottom, and so we can engineer flex, and stiffness from side to side. Were still committed to it because you save so much weight and we offer so much compliance.Stiffer but more stableAlthough Giant set out to maintain stiffness, the brand says the framesets torsional and pedalling stiffness are up by 3.4% and 2.4% respectively.With the one piece moulding technology we learned from the TCR and by updating the layup with the latest fibres and technology, we created a really good result by reducing the weight by a lot and also increasing the stiffness a little bit, says Huang.While admitting that the Propels bottom bracket stiffness is nearing the limit of what is desirable in terms of pedalling efficiency, Juskaitis says, With stiffness comes control.The Propel development team also tried to improve the bikes front-end control, as measured by its predictable torque curve where a straighter line translates into more predictable handling, according to Giant.Especially in Taiwans gusty winter conditions, Huang says, We need to address how we can manipulate the frame profile to have really good control during heavy crosswinds. Particularly for this generation, the line of the wind tunnel result is more straight. So I would say that the overall crosswind effect is smaller than many of our competitors.What about the TCR?At the launch, Giant said its mens WorldTour team, Jayco-AlUla, will almost exclusively race the Propel in 2026. In reality, this was true for the previous generation with the exception of certain Grand Tour mountain stages Chris Harper rode a TCR to victory atop the Colle delle Finestre on Stage 20 of last years Giro dItalia.Nonetheless, Giant continues to make both bikes, unlike some of its rivals who have consolidated their road race range into one model. Its rationale is partly to insure against a decrease in the UCI weight limit.Most WorldTour teams ride aero bikes because of the 6.8kg limitation, says Huang. But if one day the UCI changes the rule to 6.2 or 6.4kg, its a different story.The other reason is financial. We still have good sales for both bikes, adds Huang. Last year we still sold more TCRs than Propels 30% more, not dramatically more, so even the current Propel is still really good business. So that gives us enough resources and confidence to evolve the next generation TCR.Trickle downThe models most consumers will be looking at buying are the second-tier Propel Advanced and entry-level Advanced, due to their lower prices and separate, adjustable seatposts. They share the Advanced SLs modestly tweaked frame shape.Because their modified monocoque construction involves more material from lower grade carbon and resin, which is cut less precisely and coated in thicker paint, their Advanced composite is heavier and less stiff.Frameset weightsTo calculate its frameset weights, Giant included the frame, fork and necessary hardware and compared them to the previous generation Advanced SL.Advanced SL 1,443g down 40gAdvanced Pro 1,569g up 85gAdvanced 1,619g up 135gIn addition, Giant supplies weights for the transmission system, essentially the bike minus the groupset.Advanced SL 3,515g down 355gAdvanced Pro 3,770g down 100gAdvanced 4,568g up 698gThe cheaper Propel builds also have upgraded components. The Advanced Pro gains the integrated Contact SLR 1 cockpit, which shares the SLR 0s geometry, and new Giant SLR 0 WheelSystem. These 50mm deep rims use carbon spokes to reduce weight to 1410g, according to Giant, and have fast-engaging 40-tooth hubs. They are wrapped in Cadex Aero tyres.On Advanced builds, Giant specs its SLR 50 1 WheelSystem, which shares the SLR 0s carbon layup but has steel spokes for a claimed weight of 1500g. The brand fits its new Gavia Course, pitched as a fast-rolling, but reliable tyre.The entry-level Propels cable routing is semi-internal under the new Contact SL Aero handlebar and stem.Geometry and sizingXSSMMLLXLSeat tube length484505528.5554576595Seat tube angle (degrees)74.5074.0073.5073.0073.0072.50Top tube length520535550565580600Head tube length115127145165185200Head tube angle (degrees)71.572.573.0073.0073.0073.00Fork rake454545454545Trail67.861,458.358.358.358.3Wheelbase97197398099010061020Chain stay length405.0405.0405.0405.0405405Bottom bracket drop72.072.069.569.567.067Stack515530546565582596Reach377383388392402412Stand over height746764787808832847Handlebar width380380400400420420Stem length8090100110110120Crank length165.0165.0170.0170.0172.5172.5Wheel size700C700C700C700C700C700CThe Propel retains its racy geometry characterised by a longish and very low front-end, and short trail, wheelbase and chainstays for reactivity.Giant has dropped the bottom bracket by 4mm and steepened the head angle in sizes XS and S, capitalising on shorter cranks lowering the risk of pedal strikes and toe overlap.That helps us to have a better geometry for extra small and small [sizes] by having more steering control. A lower bottom bracket is always more stable, says Huang. We also shortened the head tube length to keep the same stack height.The six sizes should ensure most riders can find a well-fitting frame, but you probably wont be able to change component sizes prior to purchase online. A bricks-and-mortar Giant dealer may accommodate requests for swaps.Giant Propel 2026 range and specsThe Propel Advanced-level framesets are compatible with mechanical Shimano shifting, but the Advanced SL frameset only works with electronic shifting.Giant Propel Advanced 2Price: 2,599 / 2,999 / $3,500 / AU$ N/AColour: Gloss White with BlackFrame: Advanced-grade compositeFork: Advanced-grade compositeGroupset: Shimano 105 mechanical 212Bars: Giant Contact SL AeroStem: Giant Contact SL Aero, -10Seatpost: Giant Vector CompositeSaddle: Giant Fleet SLWheels: Giant P-A1Tyres: Giant Gavia Course 0, 700x28cGiant Propel Advanced 1Price: 3,499 / 4,399 / $5,300 / AU$5,999Colour: Satin Carbon SmokeFrame: Advanced-grade compositeFork: Advanced-grade compositeGroupset: Shimano 105 Di2Bars: Giant Contact SL AeroStem: Giant Contact SL Aero, -10Seatpost: Giant Vector CompositeSaddle: Giant Fleet SLWheels: Giant SLR 2 50 WheelSystemTyres: Giant Gavia Course, 700x28cGiant Propel Advanced 0Price: 4,199 / 4,799 / $N/A / AU$N/AColour: Glozz Azuraite BlueFrame: Advanced-grade compositeFork: Advanced-grade compositeGroupset: Shimano Ultegra Di2Bars: Giant Contact SL AeroStem: Giant Contact SL Aero, -10Seatpost: Giant Vector CompositeSaddle: Giant Fleet SLWheels: Giant SLR 2 50 WheelSystemTyres: Giant Gavia Course, 700x28cGiant Propel Advanced Pro 1 Di2Price: 4,599 / 4,999 / $N/A / AU$6,999Colour: Satin Cryo SilverFrame: Advanced-grade compositeFork: Advanced SL-grade compositeGroupset: Shimano 105 Di2, Giant Power Pro power meterBars: Giant Contact SLR 1 Aero IntegratedSeatpost: Giant Vector CompositeSaddle: Giant Fleet SLWheels: Giant SLR 1 50 WheelSystemTyres: Giant Gavia Course, 700x28cGiant Propel Advanced Pro 0 AXSPrice: 5,999 / 6,499 / US$7,800 / AU$9,099Colour: Gloss Obsidian PulseFrame: Advanced-grade compositeFork: Advanced SL-grade compositeGroupset: SRAM Force AXS, power meterBars: Giant Contact SLR 0 Aero IntegratedSeatpost: Giant Vector CompositeSaddle: Giant Fleet SLWheels: Giant SLR 0 50 WheelSystemTyres: Cadex Aero, 700x28cGiant Propel Advanced Pro 0 Di2Price: 5,799 / 6,499 / $N/A / $8,499Colour: Gloss Obsidian PulseFrame: Advanced-grade compositeFork: Advanced SL-grade compositeGroupset: Shimano Ultegra Di2Bars: Giant Contact SLR 0 Aero IntegratedSeatpost: Giant Vector CompositeSaddle: Giant Fleet SLWheels: Giant SLR 0 50 WheelSystemTyres: Cadex Aero, 700x28cGiant Propel Advanced Pro Dura AcePrice: 6,749 / 7,999 / $8,000 / AU$10,499Colour: Gloss Supernova with Tactical GreyFrame: Advanced-grade compositeFork: Advanced SL-grade compositeGroupset: Shimano Dura-Ace Di2Bars: Giant Contact SLR 0 Aero IntegratedSeatpost: Giant Vector CompositeSaddle: Giant Fleet SLWheels: Giant SLR 0 50 WheelSystemTyres: Cadex Aero, 700x28cGiant Propel Advanced Pro framesetPrice: 2,199 / 2,699 / $3,200 / AU$N/AColour: Satin Glacier TealFrame: Advanced-grade compositeFork: Advanced SL-grade compositeSeatpost: Giant Vector CompositeGiant Propel Advanced SL 0 RedPrice: 10,499 / 11,999 / $13,500 / AU$15,999Colour: Gloss Superspeed BlueFrame: Advanced SL-grade composite, Integrated seatpostFork: Advanced SL-grade compositeGroupset: SRAM Red AXSBars: Giant Contact SLR 0 Aero IntegratedSaddle: Cadex AMPWheels: Cadex 50 Max WheelSystemTyres: Cadex AeroGiant Propel Advanced SL 0 Dura-AcePrice: 9,999 / N/A / $N/A / AU$14,499Colour: Gloss Prizm PearlFrame: Advanced SL-grade composite, Integrated SeatpostFork: Advanced SL-grade compositeGroupset: Shimano Dura-Ace Di2Bars: Giant Contact SLR 0 Aero IntegratedSaddle: Cadex AMPWheels: Cadex 50 Max WheelSystemTyres: Cadex AeroGiant Propel Advanced SL framesetPrice: 3799 / 3,899 / $5,000 / AU$4,999Colour: Gloss Cyber SunsetFrame: Advanced SL composite, Integrated seatpostFork: Advanced SL compositeThe post New Giant Propel steals TCRs clothes with lighter one-piece construction and high-performance Cadex components appeared first on Cyclist.

In a cycling world increasingly dominated by data, physiological measurements, and performance analysis, Axel Merckx continues to argue that the foundations of the sport remain surprisingly simple. During his teams pre-season training camp in Italy, the Belgian spoke about developing young cyclists...

Giant and Liv have quietly been building out their rider-gear ecosystem over the past few seasons, helmets, shoes (reviewed here), wheels, tires, and now a deeper push into eyewear. For 2026, the brands are doubling down with an expanded sunglasses lineup alongside two new performance helmets built with modern aero and ventilation priorities in mind.(Photos/https://www.instagram.com/tomjoyphoto)The result is a pretty comprehensive head-to-toe setup: multiple sunglasses designed around high-contrast optics and adaptable lenses, plus two helmets, aimed at performance riders chasing aero or a cool head. Lets dig into whats new.(Photo/Jordan Villella)Giant / Liv Performance SunglassesThe new Giant and Liv eyewear lineup revolves around a simple goal: clearer vision at speed.The glasses are designed to improve focus, contrast, and visual clarity across a wide range of riding environments, from high-speed road riding to gravel and trail use. The core of that system is a mix of premium lens technologies, paired with lightweight TR90 frames and extensive ventilation.(Image: Giant)At the core, youll see several optical technologies repeated:VividVis Lens Technology, meant to sharpen contrast and enhance depth perception. PolarVis Lens Technology reduces glare from reflective surfaces like wet pavement, water, or snow. FotoVis Technology uses photochromic lenses that automatically adjust tint depending on ambient light. And in a nod to premium optics, several models use Zeiss-developed lenses. (Photo/Jordan Villella)All lenses feature scratch-resistant coatings, hydrophobic and oleophobic treatments to repel water and oil, and full UV400 protection. Plus, the designs and shapes are very cool-looking, even for a guy who really doesnt like sunglasses.But tech aside, the lineup is also broad. There are aggressive race-ready shields, versatile mid-frame designs, and even a lifestyle-leaning option that looks as comfortable off the bike as it does on it.(Photo/Jordan Villella)Giant Aurea SunglassesAt the top of the performance stack sits the Aurea, a semi-rimless design aimed squarely at road racing.The Aurea uses Zeiss optical lenses with a large one-piece panoramic design that maximizes the field of vision and airflow. Strategic lens vents help reduce fogging, while adjustable silicone nose pads allow riders to dial in the fit.The frames are built from TR90, a flexible, lightweight material known for durability and impact resistance. Dual rubber-injection temple tips keep the glasses stable, even when the ride gets rough.Key specs include:Weight: 32gLens height: 56.9mmFrame width: 132mmTemple length: 125.6mmBase curve: 6CPrescription lens inserts are also supported, which should make the Aurea appealing to riders who need corrective lenses.(Image: Giant)Giant Helio SunglassesIf the Aurea is the race tool, the Helio is the lightweight aero weapon.The Helio uses a rimless frame with a massive cylindrical lens for unobstructed 180-degree vision. The interchangeable lens design allows riders to swap optics based on conditionssomething that gravel riders and endurance racers will likely appreciate.Lens options include VividVis, PolarVis, and FotoVis technologies, meaning riders can choose between polarized glare reduction, enhanced contrast, or adaptive photochromic lenses.Specs for the Helio include:Weight: 32gLens height: 60mmFrame width: 140mm Temple length: 125mmSide vents help manage airflow and reduce fogging during high-intensity efforts.(Photo/Jordan Villella)Giant Lumea SunglassesThe Lumea sits somewhere between race and all-around utility.These glasses feature oversized lenses paired with a semi-rimless frame that balances visibility with protection. The lenses are Z87.1-certified shatterproof polycarbonate, meaning they meet industrial safety standards for impact protection.Available with FotoVis, PolarVis, or VividVis lenses, the Lumea is designed to adapt to road, gravel, or mountain riding.Specs include:Weight: 29gLens height: 51.5mmFrame width: 135.8mmTemple length: 124mmVentilated lenses and snap-lock hinges round out the design.(Image: Giant)Giant Agos SunglassesThe Agos leans more toward versatility.A semi-rimless frame with interchangeable spherical lenses offers a wide field of view while reducing obstruction when riders are in an aggressive heads-down position.Vents built into the lens help prevent moisture buildup, while padded temple tips and adjustable nose pads help stabilize the glasses during rough rides.Specs include:Weight: 31gLens height: 60mmFrame width: 147mmTemple length: 124mmLens options again include VividVis and FotoVis technologies.(Image: Giant)Giant Yuma & Eon: Style Meets PerformanceNot every ride is a race, and Giants lineup reflects that with two more casual-leaning designs.The Yuma brings a vintage double-bridge square frame with PolarVis or VividVis lenses. Its built for everyday wear but still delivers UV protection and high-contrast optics.Specs:Weight: 29gLens height: 51mmFrame width: 152mm(Image Giant)The Eon, meanwhile, blends lifestyle looks with ride-ready features. Oversized cylindrical lenses provide coverage and protection, while adjustable steel inserts allow riders to tweak the fit.Specs:Weight: 29gLens height: 63mmFrame width: 145mmBoth models include hydrophobic coatings and impact-resistant lenses.(Photo/Jordan Villella)Plus Two HelmetsAlongside the eyewear launch, Liv and Giant introduced two new helmets designed to achieve distinct performance goals: aerodynamics and cooling.(Photo/Jordan Villella)The Liv/Giant Pursuit Mips and Liv/Giant Rev Pro Mips were developed using CFD modeling, wind-tunnel testing, and real-world validation with Livs elite athletes. If you have a sneaky eye, you might have seen these on the road, though they are very hard to spot if you dont know the difference.(Image: Giant)Both helmets integrate Mips Air Node Pro, a lightweight rotational impact protection system, and have earned five-star safety ratings from the Virginia Tech Helmet Safety Lab. But each helmet focuses on a different performance advantage. (Image: Giant)Giant/Liv Pursuit Mips: Aero SpeedThe Pursuit Mips is Livs aero helmet. Developed to reduce drag across a range of speeds and yaw angles, the helmet features a distinctive central dimple structure that smooths airflow over the riders head.(Image: Giant)Wind-tunnel testing shows the design saves 1.66 watts compared to the previous generation, a small but meaningful gain when racing at high speed. Despite its aerodynamic focus, internal ventilation channels keep air moving through the helmet during hard efforts. Plus, its not super bulky, its sleek (for a space helmet) and complements the new eyewear very well. Other features include:Dual-density EPS foam constructionFull lower hard body shellCinch Pro fit systemFidlock magnetic buckle Weight: TBD Price: TBD(Image: Giant)Giant/Liv Rev Pro Mips: Cooling for Hard DaysThe Rev Pro Mips takes a different approach. Instead of pure aero gains, this helmet focuses on ventilation and heat managementmaking it ideal for long climbs and high-temperature riding. Oversized vents and optimized internal channeling help evacuate heat even at slower climbing speeds.(Image: Giant)An integrated arch reinforcement allows those large vents without sacrificing structural integrity or safety. At 280 grams (size medium), the helmet balances low weight with full protective coverage.Additional features include:Dual-density EPS foamMips Air Node Pro protectionCinch Pro retention systemFidlock magnetic buckleIntegrated eyewear storageWeight: 280gPrice: TBD(Image: Giant)Developed With the ProsBoth helmets will be raced by Liv AlUla Jayco and the Liv Racing Collective, meaning theyve already seen development time with elite riders in road racing and triathlon.That feedback helped shape ventilation patterns, fit systems, and aerodynamic performance before the helmets reached production.(Image: Giant)See the full lines at Giant-Bikes.comThe post Giant & Liv Expand Race Helmet & Performace Sunglass Lineup appeared first on Bikerumor.

Giant has updated two of its helmets, both with wind-tunnel developed aero features. While the Pursuit is an aero road helmet tuned for aero gains at higher speeds, the Rev Pro is a more vented helmet with low weight and heat management its focus, but still with aero credentials. The Pursuit was due an update, because the previous model was introduced 10 years ago. We highlighted it as among the oldest gear still being used in pro cycling, worn on his way to Giro d'Italia victory by Tom Dumoulin, back in 2017 when rim brakes still ruled and cable integration was a twinkle in a bike designer's eye. Giant claims the new Pursuit MIPS helmet will save you an average of 1.55 watts over its previous-generation Pursuit and that a size medium weighs 280g. The MIPS Air Node Pro system is integrated into the helmet's padding. The helmet has a shell with a central longitudinal groove, which Giant says helps smooth airflow over a range of wind yaw angles. Theres a Fidlock magnetic buckle for easy strap closure, Giants Cinch Pro adjustment and dual-density EPS foam. Giant uses the minimalist MIPS Air Node Pro rotational impact protection system. Virginia Tech awarded the Pursuit MIPS a five-star rating in its independent impact-protection tests. Read more: The best road bike helmets 2026, from entry-level to high-end, as tested by BikeRadar New Rev Pro vented helmet Giant claims the Rev Pro is cool at climbing speeds, while still aero when riding faster. The Rev Pro hasn't been around as long as the Pursuit, having been launched in 2020 and followed by the mid-tier Rev Elite MIPS in 2024. The updated Rev Pro MIPS helmets venting has been developed using thermal mapping to ensure effective cooling. Giant claims the interior channelling helps remove heat at climbing speeds, without compromising aero efficiency when going faster. The shell is reinforced to enable Giant to include larger vents and keep the weight of a size-medium helmet down to 280g, the same weight as the Pursuit MIPS and 5.4% lighter than the previous-generation helmet. Both Giant's helmets have a magnetic Fidllock buckle for easy strap closure. The Rev Pro MIPS has the same MIPS Air Node Pro rotational impact protection system and other features as the Pursuit MIPS and, as with that helmet, the Rev Pro has a five-star rating from the Virginia Tech Helmet Lab. In the UK, the Rev Pro MIPS helmet is priced at 189.99 (280 in Ireland), while the Pursuit MIPS is priced at 199.99 / 290. Both are available in three sizes to fit head sizes between 51cm and 63cm and either black or white, with either Giant or Liv branding.

The new Propel Advanced is lighter and stiffer but also more compliant, says Giant. But the real headline is perhaps what this does to it's stable mate the TCR.

Liv is pushing its aero race platform forward again with the launch of the fourth-generation EnviLiv, a completely redesigned aero road bike developed as a full-system performance package. Its a very similar design to the Giant Propel, but not identical. Rather than simply refining tube shapes, Livs engineers focused on reducing total system resistance considering aerodynamics, rolling resistance, rotational losses, and rider interaction altogether.The result is a bike thats not only lighter and stiffer than the previous EnviLiv, but measurably faster in real-world conditions. According to Liv, the new EnviLiv Advanced SL delivers an 8.62-watt reduction in total system resistance, which could translate to nearly 1 minute and 55 seconds saved over 40km at race speed.(2026 Giant Propel Launch in Nice, France. Photo/Sterling Lorence)A Decade of EnviLiv EvolutionThe EnviLiv story stretches back more than a decade. The original Envie, launched in 2013, was the first aero road bike built specifically around womens geometry and rider positioning. It quickly found success under some of the sports biggest names, including Marianne Vos and Pauline Ferrand-Prvot.Later generations refined the formula with disc brakes, deeper aerodynamic integration, and a move into the top-tier Advanced SL carbon construction. The third generation brought improved stiffness-to-weight ratios and broader race capability, serving riders in road racing, criteriums, and Olympic-distance triathlon.Now, the fourth-generation EnviLiv arrives with a full-system redesign aimed squarely at the speeds modern racing demands.(Photo/Sterling Lorence)Whole-System Aero EngineeringThe defining theme of the new EnviLiv is total-system engineering.Instead of optimizing isolated components, Liv engineers tested the complete bikeincluding wheels, tires, cockpit, and rider to measure total resistance under real riding conditions. Testing was conducted at 40km/h across yaw angles from 20 to +20, capturing airflow patterns that mimic real-world race scenarios.(Photo/Sterling Lorence)That approach led to measurable gains:8.62W reduction in total resistance120.93g lighter Advanced SL frameset14.7% increase in frame pedaling stiffness19% improvement in stiffness-to-weight ratio25% increase in rear-end compliance~15% more front-end complianceTogether, those numbers tell the story of a bike thats both faster and more composed at speed.(Photo/Jordan Villella)Meet Georgia: A Wind Tunnel Test Built Around WomenOne of the more interesting developments behind the new EnviLiv is Livs custom wind-tunnel mannequin called Georgia. Much like the Giant Grischa (the male equivalent), Georgia has helped the Liv designers build a faster bike without angering many test subjects in the process.Who is Georgia? Named after Liv AlUla Jayco rider Georgia Baker, the mannequin was designed to better represent the body dimensions of women riders in aerodynamic testing. Unlike static mannequins often used in aero testing, Georgia features realistic torso shaping, adjustable neck and head positioning, articulating legs to simulate pedaling motion, and, above all, modular construction for repeatable rider positioning. Something a human could never replicate. (Photo/Jordan Villella)The system allows engineers to study airflow around a moving rider, which is where aerodynamic gains are often lost in traditional static testing setups.(Photo/Jordan Villella)New Vector Integrated SeatpostOne of the biggest structural changes to the EnviLiv platform is the introduction of the Vector Integrated Seatpost (ISP) on the Advanced SL models. Its the first time Liv has used an integrated seat mast on the EnviLiv, and it plays a key role in both weight savings and ride quality.The updated seatpost design eliminates traditional seatpost hardware and saves the bike 64 grams compared to standard posts. But its not all about weight; the ISP improves structural continuity between saddle and frame. Plus, its a full system, and that adds vertical compliance for a smoother ride feel.Combined with lowered seatstays and a redesigned rear triangle, the system contributes to a 25% increase in rear-end compliance, helping smooth rough roads without sacrificing stiffness.(Photo/Sterling Lorence)Advanced SL Composite TechnologyThe flagship frameset is built using Livs most advanced carbon construction, combining professional-grade raw carbon fiber with Carbon Nanotube (CNT) resin technology to improve strength and impact resistance. Continuous Fiber construction helps maintain uninterrupted carbon strands throughout key structural areas, while a one-piece molded front triangle increases overall stiffness and efficiency, creating a lighter, stronger platform designed for top-tier racing performance.The updated frame construction uses single-bladder molding, reducing excess material and lowering weight without compromising structural integrity. This is the same construction used on the Propel SL and the Giant Anthem SL. Are these smaller Giant Propel frames? No Liv was very clear, these are not scaled down Propel frames. They have their own design team and all-new molds for the frames and layup. If you look at the frames side by side, there are more than a few of the same design features, but lots of subtle differences. Those differences make the bike handle better, feel more at one with the rider, and serve the rider.(Photo/Jordan Villella)OverDrive Aero Front EndUp front, the EnviLiv integrates Livs OverDrive Aero steering system. It uses a D-shaped steerer tube with aero spacers for internal cable routing. Plus a stiffened up steering interface for improved handling precisionUnlike some fully integrated systems, Liv designed the front end to remain relatively serviceable while still delivering a clean aerodynamic profile. The result is sharper steering response and greater confidence in high-speed situations such as crosswinds or sprint finishes.(Photo/Jordan Villella)Integrated Aero CockpitThe new EnviLiv Advanced SL is paired with the Liv Contact SLR Aero integrated cockpit. The design is a one-piece carbon handlebar and stem with flat tops. The shape is slightly different from the SLR Aero from Giant, and so is the sizing. This cockpit was designed alongside the frame to maintain airflow consistency while keeping the rider stable in aggressive positions.Wheels and Tires: Built as Part of the SystemLiv also approached the wheel-and-tire setup as part of the aerodynamic system.Top builds of the EnviLiv Advanced SL come with the CADEX Max 50 WheelSystem, a 50mm deep carbon wheel designed for balanced aerodynamic performance and control. The wheelset is paired with CADEXs updated Aero 28c tire, completing the full aero system.Lower-tier models use Giants SLR or Giant WheelSystems with similar 50mm rim depths and aerodynamic shaping.Handling and Tire ClearanceDespite its aero focus, the EnviLiv was also designed to handle rougher real-world roads. Notable ride-quality updates include a 25% increase in rear compliance with ISP, a 15% increase in front compliance, and tire clearance up to 32mm. Lowered seatstays help absorb vibration, while the fork and cockpit reduce high-frequency chatter through the hands.Liv EnviLiv Gen 4 GeometryModels Liv EnviLiv The fourth-generation EnviLiv lineup spans three tiers:EnviLiv Advanced SL SeriesEnviLiv Advanced SL 0 $13,500EnviLiv Advanced SL 1 $9,000EnviLiv Advanced SL Frameset $5,500Advanced Pro SeriesEnviLiv Advanced Pro 0 $7,000EnviLiv Advanced Pro 0 AXS $7,800EnviLiv Advanced Pro 1 AXS $6,000 Advanced SeriesEnviLiv Advanced 0 $5,800EnviLiv Advanced 1 $5,300EnviLiv Advanced 2 $3,500All models are available in XXS, XS, S, M, and L frame sizes.(Photo/Jordan VillellaAthlete Tested at the Highest LevelLiv worked closely with professional athletes during development, including World Triathlon Champion Lisa Tertsch and riders from the Liv AlUla Jayco WorldTeam. We had the pleasure of meeting a few of them, and seeing their custom super cool bike designs.More info at Liv-cycling.com The post Liv EnviLiv Aero Road Bike is 8.6 Watts Faster Thanks to Georgia: The Female Wind Tunnel Test Dummy appeared first on Bikerumor.

The fourth-generation Giant Propel is here and it weighs as little as 6.56kg in a top-spec, size-medium build. Despite a reduction in complete bike weight of around 350g (for the top-spec, Advanced SL 0 model), Giant claims the new version doesnt skimp on aerodynamics or efficiency. In total, Giant says the 2026 Propel has an 18.4-watt 'advantage' at 40kph over the previous model, thanks in part to a suite of new and improved components and finishing kit. Ahead of the bikes launch, we got our hands on the flagship, Propel Advanced SL 0 AXS (10,499 / $13,500 / 11,999), the mid-range Advanced Pro 0 Di2 (5,799 / 6,499) and the cheapest bike in the range, the Advanced 0 (3,499 / 4,399). Lets take a look at whats changed, and how much difference it makes going from the flagship Propel down to the more affordable models. Total System Speed The Giant Propel remains an all-rounder aero bike. Simon von Bromley / Our Media While many aero road bikes take an aero is everything approach, the Propel has always been more weight-conscious. The latest model doubles down on that ethos, shaving weight from almost every part of the bike. Nevertheless, the new Propel looks almost identical to the old one at a glance. The most obvious changes are the more heavily dropped seatstays and the move to an integrated cockpit up-front. Simon von Bromley / Our Media The Propel Advanced Pro 0 Di2 is a mid-range model, which forgoes an integrated seatpost. Simon von Bromley / Our Media As with the latest Cannondale SuperSix EVO, there are plenty of small changes which Giant says add to a big overall improvement. However, its fair to say Giant has refined the Propel formula rather than reinventing it. Thats nothing to grumble about. Both the Advanced SL and Advanced Pro versions of that bike performed extremely well during testing (bar a couple of somewhat outdated spec choices), so a more drastic change to the design would have likely alienated fans of its existing charms. In terms of whats new and improved, lets run through the headline features on the 2026 Giant Propel platform. Frameset refinements There's some (very) subtle reshaping up front, plus a bump in tyre clearance to 32mm. Simon von Bromley / Our Media While the overall silhouette is very similar, the 2026 Propel gets subtle reshaping across the frameset to improve aerodynamic performance, as well as a bump in tyre clearance to 32mm (up from 30mm). Vertical compliance at the rear of the bike is also said to be 25 per cent better, thanks to more heavily dropped seatstays, and Giant has refined the carbon layup to save 40g and improve the bikes pedalling and handling stiffness. There's plenty of room to spare around the 28c tyres fitted as stock on the new Propel. Simon von Bromley / Our Media Giant says the more heavily dropped seatstays improve rear-end compliance by 25 per cent. Simon von Bromley / Our Media It also gets a Universal Derailleur Hanger rear dropout, for compatibility with SRAMs recently launched direct-mount rear derailleurs. As before, the Advanced SL frames get an integrated seatpost and Giants lightest carbon fibre blend, while Advanced Pro and Advanced frames use a telescoping aero seatpost plus a heavier (and cheaper) carbon layup. The more meaningful changes come elsewhere on the new Propel, however, with new and updated components bringing more tangible gains especially at the front of the bike Integrated and narrower cockpits Giant's new Contact SLR integrated carbon fibre cockpit cuts drag and weight. Simon von Bromley / Our Media While many (myself included) valued the adjustability of the old two-piece cockpit, the direction of travel in road cycling is clear fully integrated, one-piece handlebars are more aerodynamic, lighter and, perhaps most importantly, make a bike more attractive to prospective customers on shop floors. Theyre what 99 per cent of pros use at the Tour de France, after all. Notably, Giant has also got on board with the trend for narrower handlebars and flared drops which contributes to that 18.4-watt advantage. The bar features a narrow hoods position with wider, flared drops. Simon von Bromley / Our Media A size-medium Propel, for example, now comes with a 400mm-wide bar (measured centre-to-centre at the drops), compared to 420mm on the previous model, and that 400mm bar measures only 370mm-wide at the brake hoods. Bike fitters will be relieved to read there are plenty of choices, with bar widths from 360 to 440mm and stem lengths from 80 to 140mm. The D-shaped OverDrive Aero steerer and cable-routing system is also carried over from the previous model, so riders can still use a two-piece setup (or a third-party option) if desired. The Propel Advanced Pro also gets a one-piece carbon cockpit, albeit a slightly heavier version. Simon von Bromley / Our Media Advanced builds get the two-piece aluminium cockpit, which is carried over from the previous version. Simon von Bromley / Our Media The top-spec Contact SLR 1 Aero handlebar is claimed to tip the scales at 286g (420x100mm), saving 77g compared to the old two-piece cockpit. Advanced Pro builds also get an integrated cockpit, albeit a slightly heavier, 350g version. The Advanced builds make do with the two-piece setup from the previous Propel, with an aluminium stem and aero handlebar. Trickle-down carbon spokes and Aero tyres The Advanced SL builds get the new Cadex Max 50 wheelset. Simon von Bromley / Our Media We got a taste of what was coming in terms of rolling stock last week, with the launch of the new Cadex Max 50 wheels and Aero tyres. Designed as a "unified aerodynamic system", these 1,290g, carbon-spoked wheels and aero-optimised tyres come fitted to Propel Advanced SL models, such as the Advanced SL 0 AXS model we got hands-on with prior to the launch. Cadex's new Aero tyres are also specced on Advanced SL and Advanced Pro builds. Simon von Bromley / Our Media As detailed in our news story on those wheels and tyres, the carbon spokes are bonded directly into the hub flanges for a lightweight and reactive construction, while the new Aero tyres are claimed to have lower rolling resistance as well as a tread pattern that helps improve aerodynamic performance. All bikes in the new Propel range are specced with 28c tyres, up from 25c on previous models, which is a welcome update (even if pro choices are trending wider nowadays, as evidenced by our bike checks at this years Opening Weekend). Together, these wheels and tyres cut another 240g of weight compared to the top-spec old model the most significant saving of all the changes. The Advanced Pro 0 Di2 is specced with Giant's SLR 0 50 wheelset, with carbon spokes. Simon von Bromley / Our Media The two pricier Advanced Pro builds, which feature Shimano Ultegra Di2 (5,799 / 6,499) and SRAM Force AXS groupsets (5,999 / $7,800 / 6,499), have Giant wheelsets with identical rim dimensions and carbon spokes, but more conventional hubs. This bumps the weight up to 1,410g. They also get the Cadex Aero tyres. The Advanced Pro 1 (4,599 / 4,999), with Shimano 105 Di2, sees a step down to steel, Sapim CX-Ray spokes, plus Giants Gavia Course 0 tyres. These have also been updated to feature a lower-rolling-resistance rubber compound and an aero tread pattern, Giant says. The cheapest build in the range gets aero-optimsed aluminium wheels. Simon von Bromley / Our Media Advanced builds also feature Giants SLR 2 carbon wheels and the Gavia Course 0 tyres, except on the cheapest, Advanced 2 model (3,499 / 4,399), which rolls on aluminium Giant P-A1 hoops. All of the carbon rims are hookless or Tubeless Straight Side, meaning theyre only compatible with tubeless tyres. What does it all mean? The Propel Advanced SL 0 AXS tipped our scales at 6.56kg as pictured. Simon von Bromley / Our Media Giant says the net effect of these changes is an 18.4-watt improvement to aerodynamic and rolling efficiency, compared to the previous model, plus according to our scales a drop in weight of roughly 350g. Showing it's working, Giant breaks down where these efficiency savings come from in its press materials: Model Previous Propel Advanced SL (watts) New Propel Advanced SL (watts) Linear drag (+/- 20 degrees yaw) 234.9 222.48 Wheel rotating drag (front & rear) 5.46 5.04 Tyre rolling resistance (front & rear) 27.4 21.8 Total resistance 267.76 249.32 Total energy savings -18.44 The previous Propel was set up with the old two-piece cockpit, with Cadex Ultra 50 wheels and 25c Cadex Aero tyres. The new one had the new one-piece cockpit, plus the new Max 50 wheels and 28c Cadex Aero tyres. Both bikes were 'ridden' by Giant's Grischa 2.0 dummy, which simulates a rider on the bike with articulating legs. Left to right, the Propel Advanced SL 0 AXS, Advanced Pro 0 Di2 and Advanced 2 on our scales. Simon von Bromley / Our Media To underscore how impressive the Advanced SL 0's 6.56kg weight is, that figure represents a fully painted bike with aero components, bottle cages, a computer mount and sealant in the tyres. Essentially, its ready to race once you add pedals, and riders with smaller sizes taking part in UCI-sanctioned events might even need to add some ballast to their bike to comply with the minimum bike weight rule. Of course, the big caveats to that are that weve not yet had a chance to ride the new Propel, and the Advanced SL build is obviously very expensive (10,499 / $13,500 / 11,999). The Propel Advanced Pro 0 Di2 is just over half the price of the top-spec model, but is still competitively light. Simon von Bromley / Our Media It gets an Ultegra Di2 (or SRAM Force AXS) plus Giant SLR 0 50 carbon wheels. Simon von Bromley / Our Media Stepping down to the Advanced Pro 0 Di2 build still nets you a lightweight bike, though, with the size-medium model we saw weighingonly 7.18kg. Thats also impressive, given it costs just over half what the Advanced SL 0 AXS does and it stacks up very well compared to the competition. The 6,995 / $6,999 Cannondale SuperSix Evo 3 I tested recently weighed 7.7kg, for example. Unsurprisingly, the Advanced 2 build (3,499 / 4,399) is substantially heavier, at 8.73kg for a size medium. The Propel Advanced 2 is the cheapest and heaviest bike in the range. Simon von Bromley / Our Media A mechanical Shimano 105 R7100 groupset and aluminium wheels help get the price down. Simon von Bromley / Our Media Youre still getting a full-carbon frame and fork with the same aero shaping as the more expensive models, though, with plenty of scope to upgrade the spec down the line, should you wish. All things considered, it looks to be an impressive package at first glance. Giant hasnt simply put the Propel on a crash diet and compromised its aerodynamic capabilities just to shed a few grams and grab some headlines. Giant hasn't revolutionised the Propel platform, but perhaps that's no bad thing. Simon von Bromley / Our Media Its a restrained update, but one that appears to smartly refine and modernise the Propel platform. It still doesn't have the outlandish design features of pure aero bikes such as the Ribble Ultra SL R, Factor One or Cervlo S5 (and may not be as slippery as a result), but it also looks to retain the all-rounder characteristics that make the Propel a compelling bike to own and ride. As with any new bike, though, the proof is in the riding, so well reserve final judgement on the new Propel until weve had a chance to test one fully.

We have not yet reached the end of the first quarter of the 2026 season, yet the list of riders who have already crashed continues to grow at an alarming rate. In almost every race there are incidents in the peloton, and many riders end up experiencing the terrible feeling of hitting the tarmac. The...