Zipp 303 S Carbon Disc Brake Wheelset Description: Zipp's 303 S Carbon Tubeless disc brake wheels were designed to make you faster. The 303 S wheels were designed to be faster over all surfaces, gravel and road. The wider rim profile allows for wider tires and lower pressure, resulting in reduced rolling resistance. This creates a claimed 10 watts of saving. Features: Optimized for 28mm tires, but capable of handling up to 50mm tires Wide, hookless design features 23mm internal width Rim width optimizes tire profile, allowing low pressures within tubeless tires for an advanced contact patch and handling Wide hookless rims match with profile of wider road widths for a seamless transition that minimizes drag Specifications: Wheel Size: 700c ISO Diameter (ETRTO): 622 Position: Set Tire Type: Tubeless (Clincher) Brake Type: Disc Brake (Centerlock) Hub: Zipp 76D/176D Axle Type: Thru Axle Hub Spacing: 12 x 100mm (Front), 12 x 142mm (Rear) Rim: Zipp 303 S Rim Width: 28mm Valve: Presta Spoke Count: 24H (Front), 24H (Rear) Spoke Type: J-Bend Material: Aluminum Color: Black Weight: -