The all-new M5 Pro builds upon a legacy of cross-country racing performance with the ultimate balance of weight savings, power transfer, and durability. The "Pro" designation indicates the M5's no-holds-barred approach to its development and racing pedigree. Built to ENVE's INNERDRIVE hubs, the M5 Pro is ready for the most challenging XC race tracks. Product Details: - Built for cross-country race applications - 1325g total system weight with tape and valves - Front and rear-specific construction and geometry - Inner-Rim Width Front: 29mm - Inner-Rim Width Rear: 27mm - Wide Hookless Bead - XC optimized anti-pinch flat protection - Alloy external nipples with Nyloc thread-locking inserts Backed by ENVE's 5-year Factory Warranty and Incidental Damage Protection