Hurricane components fork up standard 20mm the award winning standard 20mm fork up fits just about any 20mm through axle fork on the market its easier then installing your front wheelonce installed on the fork just lift your bike up onto the rack and the fork up fits easily into your rack with ample clearance for disc brakes and low hanging fork legs plus the fork up is small enough to fit in your gear bag and fits on just about any standard fork mount rack made recommended and used by the