DT Swiss F 1900 Classic Rear Wheel 29" 12 x 157mm 6 Bolt XD Ratchet LN 18 BLK Weight 858 The GORE Thermo Overshoes are The GORE Thermo Overshoes are sleek road specific overshoes offering warmth and spray protection with stretch fabric to ensure a tight fit Please note that this is a +20mm adapter which means a 140mm post mount native size will only work with a 160mm rotor just as a 160mm post mount native size will only work with a 180mm rotor and so on With a new rim based on the latest generation of Downhill rim design coupled with the tried and true ratchet hub the F 1900 wheel aims to take the beating of numerous bike park laps list style position:outside