darrensmith0410
Senior Member
- Location
- Powys, Mid Wales
Been having problems with chain going into smaller gears when I am out of the saddle. Doesn't seem to do it when I am on Zwift, only outside.
Any tips?
Any tips?
Skipping Gears
- Thread starter darrensmith0410
- Start date
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OP
OP
darrensmith0410
Senior Member
- Location
- Powys, Mid Wales
Bought the bike second hand so not sure how long been use but groupset is 105.
Globalti
Legendary Member
Well what model year? How well has it been maintained? Can you measure the chain wear? Why was it sold?
All of these questions will give you clues to the cause of the problem. A well-maintained chain and transmission shouldn't skip in any riding conditions.
Just a photo of the bike from the RH side along with a close up of the RD and cassette will help others on here to make suggestions.
All of these questions will give you clues to the cause of the problem. A well-maintained chain and transmission shouldn't skip in any riding conditions.
Just a photo of the bike from the RH side along with a close up of the RD and cassette will help others on here to make suggestions.
Dogtrousers
Kilometre nibbler
Maybe this will help.
http://www.sheldonbrown.com/autoshift.html
I can't help, and I don't vouch for the above advice. Just thought it may be of interest. It's a problem I sometimes get on my olde worlde friction shift bike if I don't do the levers up tight but not with indexed gears.
Also google "ghost shifting".
http://www.sheldonbrown.com/autoshift.html
The usual cause of the problem, though, believe it or not, is the cable guide that the derailer or hub shifter cable uses to get around the bottom bracket. As you pedal the bike, the frame flexes from side to side. This causes the gear cable to get tighter and looser with every other pedal stroke.
If the bottom-bracket cable guide has too much friction, it can act as a one-way clutch, pulling the cable down from the lever, but not allowing it to retract on the opposite pedal stroke. In many cases, greasing the cable guide is all that is required.
If the bottom-bracket cable guide has too much friction, it can act as a one-way clutch, pulling the cable down from the lever, but not allowing it to retract on the opposite pedal stroke. In many cases, greasing the cable guide is all that is required.
I can't help, and I don't vouch for the above advice. Just thought it may be of interest. It's a problem I sometimes get on my olde worlde friction shift bike if I don't do the levers up tight but not with indexed gears.
Also google "ghost shifting".
Last edited:
OP
OP
darrensmith0410
Senior Member
- Location
- Powys, Mid Wales
Apologies, didn't realise there was a timer on!
Anyway I seemed to have fixed it myself now with a bit of a play around and some lube
Thanks for the advice.
subaqua
What’s the point
- Location
- Leytonstone
Apologies, didn't realise there was a timer on!
Anyway I seemed to have fixed it myself now with a bit of a play around and some lube
Thanks for the advice.
its like speed chess . or countdown .
glad its something simple.
i need new chainrings , chain and rear sprocket as i have done rather more miles than i thought and its slipping under pressure . the teeth are proper worn on all items ( except chain as thats got no teef)
Dogtrousers
Kilometre nibbler
Thanks for the post. It caused me to go and read a new bit of the vast array of Sheldon Brown's writings. If it happens to me, I'll be ready for it now.
