Mavic XA Elite Carbon Wheel Rear 29'' / 622 Holes: 24 12mm TA 148mm Disc IS 6-bolt Shimano HGMavics ultimate performance and reliability for trail adventurers now optimized for the new breed of larger trail tires Full carbon rim delivers quick acceleration and a responsive feel. 30mm internal width rims are optimized for larger trail tires. Hookless rim profile reduces tire burps and creates a stronger rim TECH SPECS Position Rear Wheel Tire Type Tubeless Compatible Freehub Body Shimano HG Valve Presta Wheel Diameter ISO 29 622 Wheel Brake