The careful and precise lamination of the UD and 3K carbon fibers of the Supertype SPX5 rim generates a wheel with unique stiffness and aerodynamic features in its category, making it the excellent choice for all TT races.The AL 7075 T6 hubs are assembled with high-smoothness ceramic bearings to minimize friction and optimize every single watt expressed by the Pistard.Technical Specifications:- ASTM: 1- Hubs: AL 7075 T6- Weight (g): 2100 (+/- 3%)- O.L.D. (mm): 100 - 120- Bearings: Ceramic Speed® 2RS- Transmission: 35x24 tpi- Compatibility: Single speed- Max load, Bike + User (Kg): 150 Kg- Rim profile (mm): F 50 - Braking system: Disc Center Lock- Included accessories: Wheels bag / Instruction manual / Valve extension / Steel lockring / M6 conversion kit for front wheel / TX 12 conversion kit for front wheel- Rim material: 3K Carbon fibre- Rim dimension: 633x20- Tyre dimensions: 21mm ÷ 25mm- Tyre type: Tubular- Front axle (mm): 9-M6-12