RIMS Material: Maxtal and 12K carbon fiber Height: 52 mm Joint: SUP Drilling: traditional Eyelet: single Braking surface: UB Control Milling: ISM Valve hole diameter: 6.5 mm SPOKES Material: stainless steel Shape: straight pull, profiled Color: black Nipples: ABS, brass Count: front 16, rear 20 Lacing: front radial, rear radial non-drive side, crossed 2 drive side HUBS Front and rear body: aluminum Color: black Front and rear axle: aluminum Bearing: QRM+ Free wheel mecanism: FTS- L, steel COMPATIBILITY Tire: tubular. SUPPLIED WITH BR601 quick releases, rim tape, wheel bags, valve extender, wheel magnet (front wheel), bearing adjustment tool (rear wheel), spoke wrench (rear wheel), spoke wrench for aerodynamic spokes (rear wheel), user guide and warranty card