Jumping Chain just on 11 tooth
Hi All. Recently installed new chain rings, new chain and new cassette. Its all working fine except when on the big ring and in the 11 tooth and pushing hard the chain jumps. Thing is its not every revolution, just every 15 seconds or so when at a constant effort. Any ideas what it could be? Its difficult to reproduce as its such a hard gear so im struggling. Could it be chain length? Or maybe a few turns of the barrell adjuster? Any tips much appreciated. Cheers.