Bent hanger?
I’d say unlikely if it’s good at both ends, ime hanger issues mean good shifting at one end, not tother, but it’s definitely worth checking.
Usually yeah, I've had ones that are twisted rather than the usual bent inwards act as mentioned. Could also be play in the jockey wheels, play in the mech joints or poor set up of the b adjust screw that might be worth looking at.
@snottyotter started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
I’d say unlikely if it’s good at both ends, ime hanger issues mean good shifting at one end, not tother, but it’s definitely worth checking.