Zipp 808 Firecrest Carbon Road Disc Rear WheelModern design and top-end wheel technology come together to deliver a fast-paced and full-bodied wheel for assault on every road race. Zipp's fastest ever Firecrest wheel, this rear 808 model comes carbon-built, disc brake optimised and tubeless ready to push you straight to the front of the pack. Covered in air-shedding ABLC dimpling, the massive 82mm deep is super-streamlined to create vital gains and greater velocity as you sprint for the line. Super-Streamlined, Deep-Rimmed Road WheelsOptimised for use with 700x25c tyres, the rim's19mm internal width significantly reduces the rolling resistance for a more efficient run, while speed, strength and stability are all enhanced by the in-built Firecrest technology. Spinning on a 177D hub that securely holds the 24 Sapim CX-Ray spokes in place, this reliable and rapid rear roller from Zipp is the perfect podium chasing partner. Features: Material: Rim: Carbon; Hub: Aluminium; Spokes; Stainless Steel Hub: 177D, 135/142mm Spokes: 24 x Sapim CX-Ray, straight-pull, Sapim Secure Lock nipples Rim Dimensions: Depth: 82mm; Internal Width: 19mm; External Width: 26.4mm Disc Brake: 6-bolt Tubeless Ready: Yes Weight: 1025gBuyZipp Wheels & Tyresfrom Chain Reaction Cycles, the World's Largest Online Bike Store.