Its been almost three years since the Mavic Cosmic Ultimate 45 wheelset launched, and weve spotted an updated version at the Velofollies tradeshow. The new version of Mavics top-of-the-line wheels appear to share much in common with their predecessors, but they have one change which brings them bang up to date. While the previous wheels had an internal rim width of 19mm, these unreleased Cosmics Ultimate up that figure to 23mm. The new wheels have a 23mm internal rim width. Stan Portus / Our Media This brings them inline with many of the best road bike wheels and should mean they fit the latest and widest road bike tyres, while ensuring a drag-reducing interface between the rim and your rubber. Previously, the Cosmic Ultimates could fit tyres up to 32mm wide. We dont know what the official maximum tyre width is on the new version of the wheels, but the likelihood is they could fit tyres up to 35mm wide. The wheels have also gained ceramic bearings. These bearings are a common feature on boutique wheels the new Cosmic Ultimates cost 4,399 thanks to their claimed lower rolling resistance and increased lifespan over metal bearings. This is the second wheelset from Mavic to use ceramic bearings as standard following the Cosmic SLR 45s which launched in September. When we asked whether ceramic bearings were actually worth it back in 2021, Mavics Maxime Brunand explained that their purported claims make sense on paper, but often dont translate to the real world. Because of this, he said Mavic only offered them as an upgrade. But the French company must be convinced that its now worth offering these bearings as standard. The hubs use ceramic bearings. Stan Portus / Our Media Elsewhere, the new wheels seem to be unchanged from the previous versions. As their name suggests, they still have 45mm-deep rims and carbon spokes. While the carbon spokes play a role in keeping the weight down, Mavic said it actually used them on the previous wheels to increase stiffness. The wheels use Mavics rim-to-rim (R2R) construction which threads the carbon spokes from one side of the rim to the other through the hub. The new Cosmic Ultimate 45 wheelset weighs a claimed 1,260g, which is just 5g more than the last set despite the wider internal rim width. More from Velofollies New Cinelli Zydeco Washboard is a gravel bike youll want to ride everywhere Van Rysel reveals FTP2 Concept Bike that will double your power and reach speeds over 100kph Pinarello adds a drop handlebar to its XC hardtail to create monster gravel bike New Schwalbe Pro One Allroad combines road-tyre speed with gravel toughness for extreme conditions of ParisRoubaix New Nukeproof Tracker is a bargain range of kick-ass hardtails