Hi guy's, strange one here I'm hoping someone can help with.
I'm running sram xx1 and have just replaced chain/cassette/chainring, riden 80miles on it and had no problems.
I was racing today and the chain jumped behind the cassette, it then happened again about 5 min's later. I wondered if the mech hanger had been knocked so I avoid higher gears. As I'm riding middle of the block it was still jumping behind the cassette.
The hanger isn't bent and the limit screws are all good. I wondering if it could be the Jockey wheels that are worn and causing it to jump so much? The course was extremely rough. Back on road the shifting is faultless??
Any suggestions greatly appreciated as I've just lost out on double points and next race in 4 days, thanks!!!