If the chain tool drops drops in @ .75, replace the chain. 1400 miles is a lot esp if the chain has been ridden dry. If a chain is worn, your other parts will be worn as well. If there’s a gap between the chain and chain ring teeth, that’s worn. If some teeth on the sprocket looks more jagged than the others, that’s worn. Same on the derr pulleys.
@ronwalf 22372 wrote:
To continue the topic of squeaks, I have a squeaky drive chain.
Even with a freshly cleaned and oiled chain, it starts making noise after a couple miles of riding. Trimming the shifter sometimes helps, sometimes not. Some gears seem worse than others. The chain has ~1400 miles, but is still under the 0.75 mark with the chain checker. The cassette and derailleur have about 3k miles or so. Is the noise:
- Internal to the chain?
- Chain rubbing against the (possibly worn) cassette?
- Pulleys in the derailleur?
- Something else?
I’m annoyed that I can’t localize it while off the bike. I might have to find a trainer to borrow and ride on that until it squeaks.
.
