Originally Posted by
urbanknight
As for the OP's suggestion, the ability to fine tune the jumps is a nice idea. I'd wonder about the durability and cost of such a switch.
This is one reason why the track guys liked it. That and some voodoo belief that smaller rings accelerated faster.
I reckon the compact cranksets blow for the very reasons I propose this.
I've never been a fan of compacts. It's the answer to a question nobody had. Guessing it saves $$$ for someone somewhere, hence it's existence.