bike shifts down but trouble shifting up
#1
Newbie
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bike shifts down but trouble shifting up
Hi,
Working on an old 18 speed WM bike. It shifts from 1 to 6 perfectly but hesitates on going up from 6 to 5 and 5 to 4. then it works fine the rest of the way.
How do I know if this is the derailleur or shifter?
Thanks
Working on an old 18 speed WM bike. It shifts from 1 to 6 perfectly but hesitates on going up from 6 to 5 and 5 to 4. then it works fine the rest of the way.
How do I know if this is the derailleur or shifter?
Thanks
#3
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#4
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Being able to upshift or downshift but not both, and being able to switch between the two by adjustment is usually indicative of a cable friction problem. Check/lube/replace your cables, especially the last loop going into the derailleur; don't forget to check under the bottom bracket if it runs there, road gunk tends to accumulate both places..
#5
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Being able to upshift or downshift but not both, and being able to switch between the two by adjustment is usually indicative of a cable friction problem. Check/lube/replace your cables, especially the last loop going into the derailleur; don't forget to check under the bottom bracket if it runs there, road gunk tends to accumulate both places..
Think about it. You can muscle it from 1 to 6, but to go the other way the derailleur has to supply the force. If the cable is binding more than the derailleur spring can overcome it won't shift.
John
#6
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Thread Starter
Going from 1st gear to 6th requires no muscle at all and shifts smoothly. it's going from 6th gear to 5 that is the problem-when you are applying force