Another part for the rere 870c and Works 91, this time to help with the rear belt tension. The rere has moved the motor mount forward compared to the original, along with using a 34 tooth diff pulley compared to the original 35 tooth (yes, original W91 was fine pitch but most swapped back to the original 3mm belt, but it also had adjustment in the kit for belt tension front and rear). This leaves the rear belt flapping around and slipping with resultant stripped belts.

This is a modified version of my RPM style rear bulkhead with cam adjustment for rear belt tension. It also retains the original 2.5° anti-squat instead of the rere's 6°. It has been extended forwards to fit the rere, and has a secure mounting point for the Works 91 top brace.

Carried over from my standard RPM bulkhead are the M3 threaded inserts for the shock tower screws, and M3 grub screws to remove any play from the hingepins.