Niner's RDO carbon fiber rigid front fork is a leader in its class. With modern Boost front hub spacing (110x15mm) and post mount disc brake fitment (max rotor size 180mm), it's fit for any of today's best bikes. The full carbon, 1.125" X 1.5" tapered steerer tube and tire clearance for up to 29x3.0 tires keep it ready to rally on any occasion. Rack mounts midway up the fork legs can support up to 55lbs for your out-there adventures. Dimensions: axle to crown - 490 mm; rake - 51mm