The chain is rubbing against the front mech when I'm on the smaller cogs at the back - doesn't matter which ring I'm in on the front.
What's wrong? Cable too tight?
I haven't changed anything on the bike recently but I think it's a new problem.
Bike Forum
[closed]
Basic front mech problem
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Posted 1 year ago #
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Is it the inner or outer part of the mech that the chain is rubbing on?
Posted 1 year ago # -
the outer side of the chain is rubbing against the inner side of the mech.
Posted 1 year ago # -
you need more cable tension, to move the mech further away from the frame. Happens when cables stretch.
Posted 1 year ago # -
cheers reggie - I'll give it a go
Posted 1 year ago # -
It may be worth putting the shifter in position 1 (granny) and checking the cable tension first, as you may need to pull more cable through the clamp on the mech rather than adjusting the barrel adjuster.
Posted 1 year ago # -
Ta. and if I need to tighten the cable at the barrel adjuster it's ANTI-clockwise right?
Posted 1 year ago # -
Thats correct.
Posted 1 year ago # -
Also check the max movement by your front mech (over ride)
It could be restricted by the screw to stop it going too far but only check if the cable is already tight as stated above^^^
Posted 1 year ago # -
Front mech into small ring
Screw barrel adjuster all the way in then out 1.5 turns
Undo cable at mech
Check mech is sitting in correct position on stop screw - adjust if necessary
Pull cable just tight, then tighten it back up
Test and adjust at barrel if necessaryPosted 1 year ago # -
If it's suddenly started, i'd check that your mech is straight first, a good clout can sometimes twist them.
Posted 1 year ago #
Topic Closed
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