Chainring wear

[dekindy]

My middle and large front sprockets need replacing. I estimate distance ridden is 14-16,000 miles. Is that a reasonable amount of wear? When I took the bike in for maintenance and complained about an intermittent chain noise that sounded and felt like a link was dragging on a tooth, they examined them and that was the diagnosis.

[gone]

I'll make the usual "wear is ride, rider and maintenance dependent" cop out but I'd say that's pretty reasonable wear out of a set of chain rings. I've got a set that's at 11,982 that are just starting to show signs of wear. I'll probably wait until 14-15k to replace them though I have a new set standing by should I change my mind.

[Peter P.]

Yes; that's about the mileage I would get out of a set of rings before needing to replace them.

[Chief]

I have Dura Ace chain rings with 25-30,000 miles on them with no problem--in fact, I have nearly 60,000 miles on my 53 ring but I don't use it nearly as much as my 39 ring. My cassettes last 15,000 miles or more and your chain rings should out last your cassette.

[dvs cycles]

23000 miles on my 7800 with original 12/25 cassette and 53/39 rings.
Just put on my 7th chain which I replace when the park gauge is at 75%.
Not to Dave's liking but works fine for me. ;)
I use the 53 about 25% of the time and the 39 is just starting to make a little noise when the chain is new and quiets down soon after.
Next chain change gets a new 39 and cassette.
That will put me at around 26000 miles on the group. :beer: