Features a disc specific elliptical profile designed with aerodynamics and weight as key factors. Specifically tuned to be aerodynamically paired with 23-28c road tires, though a 20mm inner width compliments even the most voluminous gravel and cross tires. Specifications: Wheel Size: 650 ISO Diameter (ETRTO): 584 Effective Rim Diameter (ERD): 546mm Spoke Count: 32H Brake Type: Disc Brake Rim Joint: - Rim Dimensions: 20mm (Internal), 25mm (External) Valve: Presta Tire Type: Tubeless (Clincher) Material: Aluminum Color: Black Weight: 465g