ENVE M5 Pro 29 CL Wheel Tuned for speed With the all-new M5 Pro Wheel, ENVE set out to build from their legacy of XC performance and create a comprehensive wheelset system to redefine the category. One of ENVE's top priorities for the new M5 Pro wheelset was to improve ride quality-not only for more comfort, but for less rider fatigue, more compliance, and increased efficiency. The front rim features a wider, 29mm width for improved tire shape, and boasts increased compliance than the rear rim. The rear rim is designed to be more resistant to impacts with a wider rim wall and a narrower, 27mm rim width. Both rims feature a new rim shape, Wide Hookless Bead Pinch Flat Protection, and a new carbon laminate design. The Enve INNERDRIVE hub system boasts increased freehub engagement, drive ratchet upgrade options, and ENVE's Perfect Preload system for a longer wear life. The ENVE M5 Pro Wheel is truly tuned for speed. Features Designed for increased compliance and durability with a new carbon laminate design that increases compliance of the front rim, and durability of the rear rim Unique front and rear internal rim widths with a 27mm rear, and 29mm front to optimize the shape of front and rear tires Wide Hookless Bead design optimizes the rim shape to reduce the chance of pinch flats, especially at lower tire pressures ENVE INNERDRIVE hub system with ENVE's Perfect Preload system for longer run life, and 40, 50, 80, or 100-tooth freehub ratchet upgrades available Ultra-lightweight with a 1325-gram wheelset weight, all without compromising confidence-inspiring durability Backed by ENVE's Incident Protection program and a 5-year factory warranty Handmade and assembled in Ogden, UT to ENVE's legendary standards SPECIFICATIONSWheel Size29"Rim Material Carbon Fiber Inner Width29mm Front, 27mm Rear Valve Type Presta Tubeless Yes Tire Compatibility Hookless-compatible tires Brake Compatibility Centerlock Disc Front Axle110x15mm Rear Axle148x12mm Intended Use XCWheelset Weight1325 grams | Enve | M5 Pro 29 Cl Wheel 15X110