 You don't need to be an 'investor' to invest in Singletrack: 6 days left: 95% of target - Find out more
Sorry this is quite an embarrassingly simple issue, but I've tried all manner of adjustments and nothing seems to fix it. When in the smallest cog the chain ride out of the lower jockey wheel towards the wheel. This is more pronounced on the lower front chain ring. Otherwise the bike is fine on all other sprockets, I've cleaned throughout, changed the cable and relubed. The bike is only a couple of months old and no problems before now. Is there a common cause for such issues?
Cheers!
have you checked to see the cage/mech/mechhanger are bent or twisted?
possibly the cable sleeves? take the cable out and pull the end caps off the sleeves. If there's wires poking out then trim them back with a decent set of cable cutters. Flush the inside of the sleeves with GT85 and re-assemble. All should hopefully be peachy then.