28-03-12, 09:23 AM
Sounds like you got to it just in time.
The rear sprocket wears much slower (unless it's made of a different material), forces on the teeth are far higher on the front because it turns the chain round a much smaller radius. And, of course, the wear is distributed over far fewer teeth. Some folks change the front mid-way through the chain's life to compensate.
The rear sprocket wears much slower (unless it's made of a different material), forces on the teeth are far higher on the front because it turns the chain round a much smaller radius. And, of course, the wear is distributed over far fewer teeth. Some folks change the front mid-way through the chain's life to compensate.