Join Date: Sep 2010
Location: Walnut Creek, CA
Depends on a lot of factors. I believe it's common to get around 15k miles from a chain, but you have to take into account what kind of riding you do (casual vs. aggressive), where you ride (pavement vs. dirt), how you maintain it (degreaser and lube), how tight/loose the chain is, etc.
If your chain is loose, it'll last longer, but it'll wear your sprockets down faster. If your chain is tight, the sprockets will last longer, but your chain will wear down faster.
"Speed has never killed anyone, suddenly becoming stationary...that's what gets you." - Jeremy Clarkson