when to replace cassette and/or chainring

[Gordon71]

My 2020 Rad Rover ST has a little over 4,000 gentle miles on it. I've replaced the chain once and both clean and lube fairly often. I have the tool to measure chain wear so know when I need a new chain. As far as I can tell though there is no way to measure cassette wear. I watched a couple of videos with things to look for which are a little helpful but also heard things like: "If you put on a new chain and there is still skip you need a new cassette." Would prefer NOT to have that happen. So, in general, how many relatively gentle miles should I expect to get from a cassette and, again in general, do you replace both the cassette and the chainring at the same time?

 

[fooferdoggie]

if you keep track of chain wear the will last a long time. the skipping with a new chain is a good way. but also if you hear more noise shifting is getting bad or a lot more noise. but there is nothing wrong with the skipping method.

 

[Gordon71]

if you keep track of chain wear the will last a long time. the skipping with a new chain is a good way. but also if you hear more noise shifting is getting bad or a lot more noise. but there is nothing wrong with the skipping method.

Thanks. Do you replace both the cassette and chainring at the same time?

 

[fooferdoggie]

Thanks. Do you replace both the cassette and chainring at the same time?

a lot of times they wear the same but not always. you can usually see the wear on the chainring.

 

[AHicks]

The cassettes I've replaced were generally done because there was too much slop in the bearings, not worn teeth. These shot bearings made themselves known with a rattle that occurred only in the higher gears (5th, 6th, and 7th). Dropping down to 4th (or lower) would quiet it down. FWIW, -Al

 

[rich c]

I replaced my first chain around 3,000 miles. The cassette looked great. Replaced the second time and the chain wore a little faster, replaced it around 5,400. Put on the third chain and it was a little noisy. Never a skipping problem. So at 7,100 miles I replaced the whole drivetrain. Chain ring, chain, cassette, and jockey wheels. Runs silent again and just passed 7,800 miles. That's on a Haibike with Bosch mid drive.

 

[fooferdoggie]

I would get 2000 miles on a chain in winter and around 2500 in summer. I got 12k on my drivetrain before it was bad and I replaced it all. 8 or nine chains later.