Range of use: Road bike Model: 303 S Carbon Clincher Rim size: 28 Tire type: Clincher Spokes: 24 Braking system: Center Lock disc brake Tubeless system: Yes Recommended maximum system weight: 115kg (body weight bike gear) Maximum air pressure: 5.03bar (73psi) Outer rim width: 27mm Inner rim width: 23mm Rim height: 45mm Valve hole: SV (6.5mm) Hub: Zipp 76T / 176T Installation width: Front: 12 x 142mm thru axle Rear: 12 x 100mm thru axle Spoke type: Sapim CX-Sprint Spoke Pattern: 2-cross Nipple Type: Sapim Secure-Loc Freewheel Compatibility Sram XDR Freewheel: Sram 12-speedNote: A 1.8 mm spacer ring is required to mount XD cassettes on an XDR rotor.