I'd say almost definitely B screw. Wind that sucker in and get the jockey wheel away from the cogs and it will improve.
Had the same thing on my other half's bike. Would shift very poorly or not at all from the first 3 cogs, fine after that. B screw just needed adjusting
I'd say almost definitely B screw. Wind that sucker in and get the jockey wheel away from the cogs and it will improve.
Had the same thing on my other half's bike. Would shift very poorly or not at all from the first 3 cogs, fine after that. B screw just needed adjusting