Carbon Road Bike Quick release Wheelset Clincher 700C Bicycle QR Wheels Rim Brake Novatec 271 Hub for Shimano 8/9/10/11speed. Campay, please leave a message. Toray T800 full carbon fiber.Brake track area top to bottom. Effective brake track area top to the bottom. Front 268mm;Rear 268mm-non Drive with 268mm-Drive. 1438g ±60g for clincher(45mm type weight).