You are reading a single comment by @vpCogworks and its replies.
Click here to read the full conversation.
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.
AlexD
@vpCogworks
Having some brain farts about Marin's shifting. It's all good, except for the 6-7th gears, these are crunchy and jumpy for some reason, even though I have a friction shifter I cannot get them right.
The chainline is quite horrible, chain's straight in the 8-9th gears, then it starts bending to the left towards the bigger cogs. However, even on the largest sprocket it feels less jumpy and crunchy than the 6-7th speeds.
Maybe the derailleur doesn't like the 9sp chain? I hardly think this is the case given how slight the difference is between 9 and 10. I don't have another long cage derailleur to test this out, so the big cogs will not be cleared, but I can test up to the 3rd one I believe.
There is no visual sign, but the derailleur cage might be bent. I can also test if this is the case by trying another RD.
Then it might be the derailleur hanger of course... It's a CrMo frame, with the hanger built into the dropout. I could test this with RJ's method.
Are there any other things I should try? I can also swap the casette to an 8-speed and check how that works. I had no issues with 7 speed back then.