The new Shimano XTR M9000 wheels offer XC racers the ultimate solution in the form of an ultra-lightweight 29'' wheelset. These Full Carbon rims with 28 spokes per wheel only weigh 1660 grams per wheelset. At the rear you have the option of 142x12 mm or 135 mm (QR) rear axle. This front wheel is supplied with a 15mm through axle. The wheels and hubs are only offered with Center Lock rotors. The wheels are 10 and 11 speed compatible.