Originally Posted by
Trakhak
Sure. You can, and so can I. Most mechanics would have to waste a lot of time achieving it, though, to say nothing of the average bike owner. Which is why you and I feel justified in boasting about being able to do it, and why the invention of the Centron pulley catapulted Shimano's position in the bike component world from prominent to dominant.
I agree the Centeron probably forgives a wide range of mechanical sins, especially for those who may not be meticulous about bike maintenance. I'm not sure it was the sole reason for the massive success of Shimano's foray into index shifting in the mid-1980s.