Specification: Brand: BUCKLOS Wheel size: 700C Rim Type: Clincher Brake Type: Rim/Disc brake Valve Type: Presta (F/V) Specification: 9100mm/Front, 10135mm/Rear Rim Holes: front 24 + rear 24 Rim Depth:40mm Rim Size: 19mm outer, 14mm inner Hub: Carbon Fiber Bearings: front 2+rear 5 sealed bearings Weight: about 1000g/Front, 1120g/Rear Rim: High strength Aluminum alloy Spoke: 45# Steel Aero flat Spokes Rivets: Increase the strength of the rim and the force of the spokes is more even Maximum Rider weight:150KG Fit tyre width: 18-25C Support Cassette: 8.9.10.11 speed Cassette, 8-10s need spacers. Accessories: QR skewer+QR end caps+2pcs spare spokes.