ENVE XC28 Carbon Wheel Modern carbon for modern XC. The ENVE XC28 brings the carbon expertise and build quality of ENVE's premium M Series to a more accessible price point as part of the ENVE Foundation series. Born from M Series development and inspired by the proven durability of the AM30, the XC28 is optimized around a 2. 4" tire with a 28mm internal width, borrowing shaping cues from the M5 and M6 to strike the ideal balance of compliance and efficiency. ENVE's patent-pending Wide Hookless Bead dissipates impact energy and reduces the risk of pinch flats, while molded spoke holes - using ENVE's patented process of routing fibers around the hole rather than cutting them - deliver higher spoke tension capability, a lighter spoke face, and improved long-term rim strength. ENVE Innerdrive Foundation hubs with an 80-tooth ratchet and oversized 42mm inboard drive system provide positive, reliable engagement. Sold individually. Features Foundation carbon construction - simplified laminate delivers M Series ride quality and durability at a more accessible price point Wide Hookless Bead (patent-pending) - dissipates impact energy at the rim edge to reduce the likelihood of pinch flatting tubeless or tubed tires Molded spoke holes (patented) - carbon fibers routed around spoke holes rather than cut for a stronger, lighter spoke interface capable of higher tension without pull-through risk28mm internal rim width optimized for 2. 25-2. 4" tires; shaping cues from the M5 and M6 for confident tracking with XC efficiency ENVE Innerdrive Foundation hub - 80-tooth ratchet, oversized 42mm inboard drive system, automatic preload adjustment, reduced axle stress, and easy serviceability Sapim CX-Ray J-Bend spokes with Alpina Nylock brass nipples, 120kgf spoke tension Sold individually - front and rear variants available SPECIFICATIONSMaterial Carbon Fiber Wheel Size29" (622mm ERD)Internal Rim Width28mm Rim Depth21mm Sidewall Width3. 8mm Hole Count28h (front and rear)Bead Type Wide Hookless Brake Type Centerlock Hub - Front ENVE Innerdrive Foundation - 15x110mm Boost Hub - Rear ENVE Innerdrive Foundation - 12x148mm Boost or 12x157mm Super Boost+; 80-tooth ratchet Freehub Compatibility - Rear XD or Microspline Spokes Sapim CX-Ray J-Bend Nipples Alpina Nylock Brass Spoke Tension120kgf Rim Weight385g (front and rear)Wheel Weight - Front722g Wheel Weight - Rear824g Wheelset Weight1, 516g (includes tape and valves, XD freehub)Recommended Tire Size2. 25-2. 4"Maximum Tire Pressure40 psi Tubeless Tape Width32mm Tubeless Valve Length35mm | Enve | Xc28 29" Wheel Front, 15X110Mm, Centerlock