Few thoughts ....

Firstly, what makes you think you're wearing them out? Are you being told they're worn out or are there 'symptoms? Reason I ask is that I own many bikes and ride many many miles every year but I never get close to replacing chains and even worse, chainrings as often as that. In fact I've a couple of older bikes which I've ridden for thousands of miles without replacing the chainrings. So is this a local bike shop viewing you as a bit of a cash cow? Sure there will be wear on chains and chainrings but if they function correctly then no need to replace. Also buying top range is only likely to speed up component wear because you're paying for lightness not to reduce wear and tear. I agree with Ralf S. Make sure you regularly lubricate the chain with a Teflon lube (Teflon means the chain will pick up less grit which can make a very good grinding paste!) and if it's working without slipping then leave it alone.

Posted By: Chopper, Feb 22, 11:39:15