Frank Krygowski wrote:

If you're starting from a stop by applying
extra torque to the cranks (as is usual) you
would get extra wear at that moment. But it's
only for a moment. I suspect it has little
overall effect.

OK, so when and why does wear occur?

And how long should you be able to go before
the slack exposes you a fraud mechanic and/or
the owner of crooked gear?

--
underground experts united
http://user.it.uu.se/~embe8573