Originally Posted by
jrobe
"I check chains at 1000, and usually replace at 1500-2000 miles
Cassettes I check at 3000, and usually end up replacing at 5000"
I get at least twice that on Ultegra chains and cassettes and sometimes 3x that (using a chain check tool to replace at the proper time).
Again, as I said, what I do is probably a little overkill. My chains are gone though at that mileage using a chain checker, and cassettes I could probably stretch out, but that would start to wear the chainrings prematurely. There's no way I can get 3-4k out of a chain without destroying my drivetrain, again ymmv, which is why I said check at 1000 (which is usually closing in on .5 for me on a chain checker). And I do lube and clean everything once a week at least, if it's wet out more often than that.