My single speed is skipping or the chains slipping under a lot of watts climbing hills sounds like the chains gonna break advice
by Lvennard
My single speed is skipping or the chains slipping under a lot of watts climbing hills sounds like the chains gonna break advice
by Lvennard
3 Comments
Either need a new chainring, or a new rear cog.
Might be a freehub issue. It might be slipping. It feels exactly like a chain slipping on a worn cassette. Because that cog and wrap looks tight to me. Unless that chain is super loose, I can’t see it jumping on this setup.
IME a chain that’s going to break makes a creaking sound on the ride before it breaks.
What you have is a worn rear cog (or maybe the front chainring), possibly combined with a newer chain.
Looking at the 1st photo, the two teeth and the root between them are visibly worn. The photo showing the front chainring is too blurry to see such details. One quick and approximate test is to try and lift the chain off the gears. If it can lift much at all then you’ve got wear. See “Method 1” at [https://www.parktool.com/en-us/blog/repair-help/when-to-replace-a-chain-on-a-bicycle](https://www.parktool.com/en-us/blog/repair-help/when-to-replace-a-chain-on-a-bicycle)