The MI6 is White's disc brake specific front hub. Designed to ISO standard six bolt rotor, this hub will accept all major disc brake rotors. The demanding nature of off-road riding requires a durable front hub that you can trust. The MI6 hub design incorporates an oversized 15mm axle and taller hardy flanges resulting in a stronger front wheel. Another feature that is distinctive to the MI6 is that the rotor mount is machined as part of the hub shell. The advantage to the integral rotor mount is a streamlined hub shell, and, more importantly, the one piece shell is an intrinsically stronger component. Made in the USA.