Compatibility:- Rear axle: Quick Release only- Front axle: Quick Release only- Freewheel: Shimano/Sram, convertible to Campagnolo with optional driver bodyHubs:- Front and rear bodies: aluminum- Axle material: steel- Sealed cartridge bearings (QRM)- Freewheel: FTS-L steelRims:- ETRTO size: 622x17C- Drilling: traditional- Internal width: 17 mm- Height: 21 mm- Valve hole diameter: 6.5 mm- Joint: pinned- Material: S6000 Aluminum- Tyre: clincher- Brake track: UB ControlSpokes:- Shape: straght pull, round (front and rear non drive side) and straight pull, flat (rear drive side)- Nipples: steel, ABS- Shape: straight pull, round- Material: steel- Lacing: radial front and rear non-drive side, crossed 2 rear drive side- Count: 20 front and rearIntended Use:- Max. Pressure: 23mm 8.7 bars - 125 psi, 25/28mm 7.7 bars - 110 psi- For a longer longevity of the wheel, Mavic recommends that the total weight supported by the wheels don´t exceed 120kg, bike included- ASTM CATEGORY 1 : road only- Recommended tyre sizes: 25 to 32 mmWeight:- Front without tyre: 845 gramsCompatible Adapters and freewheel bodies:- FTS-L Campagnolo freewheel body (30871201)- FTS-L Shimano / Sram freewheel body (30871101 - Delivered on the wheel)