Aero efficiency, quick acceleration and the improved ride quality of UST Tubeless. You get it all with this carbon road wheel featuring easier to use Road Tubeless technology and lighter weight. Compatibility Rear axle: Quick Release only Front axle: Quick Release only Freewheel: Shimano/Sram, convertible to Campagnolo and XD-R with optional driver bodies. Rims Material: 100% carbon fiber ETRTO size: 622x19TC Road iTgMAX carbon clincher technology for rim brake Use with Mavic Tubeless Tape Drilling: traditional UST tubeless technology Internal width: 19 mm Height: 40 mm Tyre: UST Tubeless and tubetype Hubs Infinity Hubs QRM Auto bearing preload technology Instant Drive 360 freewheel technology Front and rear bodies: aluminium Axle material: aluminium. Weight Pair without tyre: 1600 grams Front without tyre: 705 grams Rear without tyre: 895 grams Intended Use Max. Pressure: see indication on wheel and tyre. If they differ, use the lowest of the 2 For a longer longevity of the wheel, it is recommended that the total weight supported by the wheels doesnn\'t exceed 120kg, bike included. ASTM CATEGORY 1 : road only Recommended tyre sizes: 25 to 32 mm