So I've read the tech help and followed the youbube tutorials but I still can't get my rear mech to index properly.
At first I thought it must be a problem with the rear mech so I changed that, and in doing so I managed to cross thread the hanger and so replaced that as well.
However I'm still getting the same problem. The sympton is that (after setting the h/l screws) I set the tension so that it jumps correctly for the first change from the smallest cog to the next one up but then on the next change it jumps two, then nothing, and then I start cursing...
The only thing I can think to do next is getting a tool to ensure the hanger is aligned properly... but should this be necessary on an alu frame with a replaceable droupout?
Any suggestions would be gratefully received.