Changing an H_RATCHET 48T Freehub Body

THIS GUIDE REFERS TO THE FOLLOWING WHEELSETS:

• HUNT 40 Limitless Aero Gravel Wheelset
• HUNT 40 Limitless Aero Gravel UD Carbon Spoke Wheelset
• HUNT 40 Limitless Gravel Adventure Wheelset
• HUNT 40 Limitless Gravel Adventure Dynamo Wheelset

Need to order the parts featured in this guide? Head to our Spares page here. Our guide to using the Spares Finder is here.

1. Remove the wheel from the bike and remove cassette if fitted.
2. Pull the drive side end cap from the axle – no tools are required.
   
    
3. The freehub body simply slides off the axle. The H_Ratchet 48T DBL is made up of the following items :
   - Two washers sitting against the freehub and the hub shell. 
   - Two springs.
   - Two ratchet rings that interlock with each other.
   - One conical washer.
   
   The washers have a lip and this lip must be facing inwards towards the springs and ratchets (see images below). Next the two springs sit in between the washers and the ratchet discs.  The two ratchets interlock with each other and the conical washer sits on the axle. Please note the orientation in preparation for reinstalling (see image below). 
   
    
4. To service the freehub mechanism, clean the H_Ratchet DBL and ratchet rings of the freehub body with a dry micro-fibre cloth and lubricate with a thin layer of lightweight grease on each surface.
   
    
5. Push the adaptor/end cap back on to the drive side of the axle.  Please Note:  If swapping from SRAM XD or SHIMANO HG to SHIMANO MicroSpline  or vice versa the drive side end cap is specific to the freehub body. 
6. Ensure that the adaptors/end caps are fully pressed home to ensure proper fit and prevent any lateral play.