Slipping Derailleur
06-14-19, 01:24 PM
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Slipping Derailleur
I wondered if any of you knowlegeable folks could help me?My bike gears have recently started slipping .Its as if it's going to change gear by itself but it remains on the same cog.Its at the rear and mainly second smallest just after I have changed down.Thanks a lot
06-14-19, 02:15 PM
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cable slipping perhaps ...
as usual :1st have bike shop check hanger alignment..
it's the foundation of indexed shifting..
as usual :1st have bike shop check hanger alignment..
it's the foundation of indexed shifting..
06-14-19, 08:27 PM
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If the chain remains on the initial cog then either the cable is only slightly "loose/tight" and it's catching the adjacent cog, jumping up but not derailing to the next door cog. Or the chain/cog mesh is no longer sufficient to withstand pedaling forces and the chain is moving up the teeth faces and climbing over the teeth tops. Do check for bent teeth or links too. Andy
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06-14-19, 08:57 PM
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I always thought that was a sign that the chain and/or cassette was worn out. But I had that happen when I was first learning how to adjust the rear hanger/derailleur. After watching a few YouTube vids I got it right and now it's become second nature-both determining wear and making fine adjustments.
06-14-19, 09:46 PM
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I always thought that was a sign that the chain and/or cassette was worn out. But I had that happen when I was first learning how to adjust the rear hanger/derailleur. After watching a few YouTube vids I got it right and now it's become second nature-both determining wear and making fine adjustments.
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06-15-19, 03:49 AM
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My 2 cents: Check chain for wear and cassette for wear just in case. It could also be that you need new cables/housings or just adjustment of cable tension.
06-15-19, 09:23 AM
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Yes, a stiff or frozen link on a chain will definitely cause this to happen. But if you're cleaning and lubing your chain regularly, that shouldn't happen, Right? Pick a spot on the chain and work each link by hand rotating it until you've gone all the way around. It's always possible you got a piece of grit or something in there that's causing a link to bind. Good luck,
