Think I've found out what one of the issues is. The inner chainring is a 28-tooth non-standard one rather than the usual 30-tooth, which explains a fair bit. I think I've got a 30-tooth somewhere, so I'm going to fit that and see how it goes. Couple of extra chainring teeth should give me a bit more leeway at least.
Think I've found out what one of the issues is. The inner chainring is a 28-tooth non-standard one rather than the usual 30-tooth, which explains a fair bit. I think I've got a 30-tooth somewhere, so I'm going to fit that and see how it goes. Couple of extra chainring teeth should give me a bit more leeway at least.