The race for Lenny Martnez has opened up to another giant. After Bahrain-Victorious and INEOS Grenadiers, Team Visma | Lease a Bike is also in contention to get the young climbing sensation who insists on staying at Groupama-FDJ.We had some good talks, but not concrete yet. It could happen," Vism...

Stage 5 proved to be a disaster for Israel - Premier Tech. Several of their riders crashed hard on the day in separate incidents, and two of them will not start the sixth stage this morning including team leader Michael Woods who was in search of a stage win to complete the Grand Tour trilogy.After...

The Tekkerz founder tells Cycling Weekly about his love of MotoGP, watching track races at Herne Hill, and the chance encounter that turned him into a crit fanatic

Biniam Girmay abandoned the Giro d'Italia during stage 4 after crashing twice. The Intermarch-Wanty rider now issued a statement reassuring fans that he is recoverying from what was a disaster situation at the Corsa Rosa."Hello everyone, it's Bini. Now I'm better from the crash two days ago, thank...

BORA - hansgrohe's lineup choice for the Giro d'Italia was the one riddled with the most questions. Partly, this was due to breakthrough climber Florian Lipowitz who showed incredible form ahead of the Corsa Rosa and was selected; but the German has now abandoned the race ill.Lipowitz' selection is...

Vincenzo Nibali has won the Giro d'Italia twice, and in 2016 he certainly encountered very difficult days where he lost time to his rivals. More than most, the 'Shark of Messina' knows that at the Giro it is necessary to be open to all scenarios everyday, and he believes that is currently the most i...

CyclistBest tubeless sealant for road and gravel bike tyresThe best tubeless tyre sealants will provide you with confidence that youll be protected from many punctures as you ride. Tubeless tyre tech has taken over in a big way for road bikes, with even the pros converted to its use. Tubeless is pretty much essential for gravel bike tyres, where the risk of flats from loose surfaces, debris and thorns is much greater than on the road. Run at lower pressures, gravel bike tyres are easier to get to seal than road bike tyres, but some brands have formulated sealant specifically for higher pressure use. A tubeless repair tool can help seal larger flats, but its always a good idea to carry a spare inner tube and a mini pump just in case.As youd expect, smaller volume bottles of sealant can work out expensive for what you get, although theyre handy to carry with you if youre on a longer trip and running tubeless, just in case you get a flat and lose a significant volume of sealant. Its not just when underway that the best tubeless sealants will help though; theyre essential for fitting a tubeless tyre, getting it to seat and hold air in the first place. It may be worth investing in a workshop-size bottle for home use. Most sealants are available in one-litre sizes, although the five-litre vats that many offer are probably overkill.Heres our pick of the best tubeless sealants. With most of our review bikes now running tubeless, weve had plenty of opportunity to use the majority of them, although in many cases without a puncture, or at least without one that we noticed. Related Posts Hooked vs hookless rims: Pros, cons and which is right for you Are wider road bike tyres faster? Paris-Roubaix tech: Tubeless tyres, new Trek Domane, and is Canyon launching a suspension headset? Which is faster: Continental GP5000 tubeless or clincher? Best tubeless road tyres 2024: Cyclists guide to road bike tubeless tyres (video) Best tubeless tyre sealantsDT Swiss14.99 | View offerPros: Separate high and low pressure formulationsCons: Smallish volume for HP formulaWith its range of tubeless-ready wheels, branching out into tubeless sealant is a handy extra for DT Swiss. But rather than one sealant formulation, DT offers two: one for low pressure and one for high pressure. It marks the dividing line at 60psi, so the low pressure sealant is more for gravel bike tyres and the high pressure sealant for road bike use.DT says the low pressure sealant can fix holes up to 6mm without a plug, while the high pressure sealant will work with holes up to 3mm. It sells the low pressure sealant in 120ml bottles, which it says will handle four 40mm gravel bike tyres; theres a litre bottle if you want more. The high pressure sealant is sold in a 60ml bottle, enough for a pair of road tyres.Effetto Mariposa Vegetalex28 | View offerPros: Plant-based biodegradable formulaCons: Needs a little more per tyre than CaffelatexEffetto Mariposa sells a wide range of tubeless tech. Alongside its Caffelatex sealant, it now offers this plastic-free biodegradable sealant. Effetto reckons that its also low maintenance. Weve found that Caffelatex tends to dry out quite quickly, whereas Vegetalex is claimed to stay effective for six months use. Going green, Vegetalex is based on ground olive stones and cellulose fibres, all held in a xanthan gum binder. Effetto says that its easy to clean, an advantage over latex-based formulations, and can handle cuts up to 5mm. It recommends around 42ml per tyre for a 28mm tyre, a little more than for Caffelatex.Hutchinson ProtectAir Max8 | View offerPros: Good value, Available in larger volumesCons: Latex-based formulationHutchinson was one of the first tyre companies to offer tubeless bicycle tyres, long before they went mainstream on road bikes, so it knows about tubeless tech. ProtectAir Max is a latex-based formulation that Hutchinson says will fill holes up to 3mm. Although the 120ml size will only treat a couple of tyres, ProtectAir Max is also available in one or five litre bottles, the latter useful if youre running a workshop. Its good value too. Joes No Flats Super Sealant6 | View offerPros: Good range of volumes, including carry-with sizesCons: Prone to clog valve coresJoes No Flats offers a range of sealant formulations, with the Super Sealant claimed to act fast and fix holes up to 6mm wide. Its another sealant where you can choose between a range of volumes, from a 60ml bottle for one or two tyres, right up to one litre. Joes claims wide temperature stability from -20C up to 70C and that Super Sealant will work for tyre pressures from 15psi up to 100psi. It also sells gel-based sealants, eco sealant and specific formulations for racers and road and MTB use.Muc-Off No Puncture Hassle10 | View offerPros: Long-lasting, UV activeCons: ExpensiveMuc-Offs sealant formulation, as with many others, has a claimed capability to fix holes up to 6mm. Muc-Off says that it should last up to six months between top-ups. As with Muc-Offs lubes, theres a purple UV-active dye included, which you can shine a UV torch on to help identify punctures. It comes in handy 140ml pouches with a top that screws onto a valve, for easy administration. These are pricey, although you may get up to four tyres treated per pouch. The larger one litre size is better value, although still more expensive than most alternatives.Orange Seal 10 | View offerPros: Three formulations for different usesCons: Seal may not hold air at higher pressures until fully setNo prizes for guessing Orange Seals signature colour. The brand sells a regular formulation, Endurance sealant, designed to stay liquid for longer, and Subzero sealant for temperatures down to -20. The regular formulation has greater claimed plugging power for larger holes up to 6mm, against the other formulas 3mm. In our experience, the regular sealant will seal holes effectively, although the plug tends to blow out easily if you try to get back up to higher pressures. Leave it to set overnight and it will stay in place and airtight though. The standard bottle comes with a hose to make application easier, although you can buy refills in a wider range of sizes.Silca Ultimate Tubeless Sealant28 | View offerPros: Carbon fibre content enhances pluggingCons: Cant add with a syringe or through a valveSilca adds short carbon fibres to its latex-based sealant formulation to increase its plugging power. The fibres are reclaimed from bikes, wheels, racing cars and aerospace components, which is a handy way to reuse carbon waste. Silca claims their stiffness also leads to more effective plugging, which can handle holes up to 7.5mm.The downside is that you need to pour the sealant in before fully mounting the tyre, as the fibres will clog a syringe or valve stem. Silca sells a separate fibre-free Replenisher though, which will make up for any drying out and can be added without dismounting the tyre.Specialized RapidAir 10 | View offerPros: Formulated specifically for road bike tyresCons: Expensive for small volumesSpecialized says that its RapidAir sealant is specially formulated for higher pressure road bike tyres of 24mm to 30mm width. It claims sealing of holes up to 3mm with little pressure loss and that the plug will stay in place when you pump your tyre back up to full pressure.Compatible with CO2 inflators, RapidAir is also claimed to work at temperatures from -20C up to 70C, with between 40ml and 60ml needed per tyre up to 30mm.Stans No Tubes20 | View offerPros: Decent value in larger sizesCons: Not the most effective on larger puncturesStans No Tubes was one of the original tubeless sealant brands and is still well regarded. It claims longevity of up to seven months for its sealant and its larger-sized bottles offer decent value. Alongside its original sealant, it also sells Raceday Sealant, a formulation with twice as many crystals as the original for greater clogging power. Its also branched out into tubeless-ready MTB and gravel rims and wheels and the Dart tubeless repair tool.Vittoria Universal9 | View offerPros: Will work with Vittorias cotton tyresCons: Smaller sizes are expensiveVittorias sealant is claimed to have the capacity to seal larger holes up to 7mm, thanks to a formulation with suspended particles. With Vittorias Corsa road tyres having a cotton casing, the sealant is designed to be compatible with these, with an ammonia-free formula that wont cause tyre degradation. Theres a good range of sizes, from 80ml up to 1,000ml, so you can carry a tube along for top-up duties on longer rides and bikepacking adventures, while still having a larger quantity back at the workshop.WTB TCS15 | View offerPros: Synthetic latex to avoid allergy problemsCons: Not as effective at very low temperatures as some alternativesWTB claims sealing at temperatures as low as -9C for its synthetic latex formulation, which forms part of its offer of rims, tyres and other tubeless components. It says synthetic latex avoids allergy issues which can arise with natural latex.As with many other sealant formulations, WTB claims effective sealing of holes up to 6mm from its suspended particles, which cure in the hole, rather than requiring evaporation of a solvent for plug formation. The lower antifreeze content allows WTB to increase latex content.Read our guides to the best tubeless road bike tyres, best gravel bike tyres and best tubeless repair kits to complete your tubeless set-up. Related Posts Hooked vs hookless rims: Pros, cons and which is right for you Are wider road bike tyres faster? Paris-Roubaix tech: Tubeless tyres, new Trek Domane, and is Canyon launching a suspension headset? Which is faster: Continental GP5000 tubeless or clincher? Best tubeless road tyres 2024: Cyclists guide to road bike tubeless tyres (video) The post Best tubeless sealant for road and gravel bike tyres appeared first on Cyclist.

A nice day out on the beatiful Ligurian coast, light northern breeze and a bunch finish on the menu. What could go wrong? Well, the sprinter teams learned the hard way today in a class taught by professors Benjamin Thomas, Michael Valgren and co. The breakaway of four never created a remarkable gap...

Specialized's motto for the new Diverge STR is suspend the rider (STR), referring to the bikes unique front and rear suspension setup that isolates riders from bumps without sacrificing the efficient stiffness of a rigid carbon frame. There's no suspension of disbelief required for Amy Jurries, however, as she found the Diverge STR to be a joy to ride on a recent bikepacking trip across the diverse landscapes of Cyprus, even when loaded. Find Amy's full review hereThe post Specialized Diverge STR Review: Taking a Bite Out of Gravel appeared first on BIKEPACKING.com.