Hello everyone, i was wondering if you could give me some advice on a problem i have been having?
I have an XTR M960 rear mech that will not change onto the largest sprocket.
I have tried everything i can think of, i have reduced the chain length to the correct size and spent hours adjusting the H, L and B screws to no avail.
The mech is rapid rise, so i would have thought the top sprocket would be no problem at all, as the mech naturally sits there at rest.
If i pull the mech down slightly it changes, if i push the mech towards the wheel it changes. I have also removed the gear cable so the mech sits as close to the wheel as possible. the L screw has been relaxed to allow the mech to move past the large sprocket, which it will do if i push the mech to make it move up.
Is there something i am missing here? its driving me crazy!
The only thing left to try is replacing the XT cassette with a new XTR maybe that will solve the problem?
Many thanks!
Alan.
Crank & Bottom Bracket: Shimano XTR Cranks HollowTech II & BB M960
Cassette: Shimano XT 9sp
Rear mech: Shimano XTR R-Mech Rapid Rise M960
Front mech: Shimano XTR F-Mech Conventional M961
Chain: Shimano Dura Ace Chain 9sp 7700
Cables: Avid FLAK JACKET Front & Rear Gear Cables