DT Swiss Ring Nut Installation Tool for Ratchet EXP OS Hubs

- Ring Nut tool required for removing and reinstalling the ratchet EXP Oversized ring nut with integrated inner ratchet
- Only works on Ratchet EXP Oversized systems with the blue anodised axle spacer, for standard EXP please use HBDT8387S, for original twin ratchets please use HBDT835
- Simple to use, fits into a vice for workshop use
- Always consult the relevant DT technical manual before attempting to service an unfamiliar hub