Koozer MTB Mountain Bike Rear Hub 12 142mm 135mm 15mm THRU XD 11 Speed 28 32 36 Holes 4 Sealed Bearing Disc Brake Bicycle Hubs new koozer xm460 mountain bike hub 72 ring front 2 rear 4 bear quick detachment barrel shaft hub hub accessories 32 holes page 1 page 4