Originally Posted by
unworthy1
OK, I'll bite (
)
It's a fair question: Huret pulleys were toothless, (they also used loads of tiny ball bearings)...but everybody else, including the aftermarket pulleys, all have teeth.
So was Huret the only mfg. that got it right?
Has anybody tried running their Campy, Shimano, Suntour, Sram, etc. RDs with the pulleys ground smooth...and what happened?
I have a very early Campy Gran Sport rear derailleur (I see John just beat me to it!!!) which came new with toothless steel pulleys on ball bearings. The purpose of the pulleys is to guide the chain onto the proper rear sprocket, and to enable taking up chain slack. Teeth aren't really needed. Decently free bearings are needed. If those blemishes and marring cause some friction when you get them back on teh cage, just trim them off with an Xacto knife.
Clean and lube the bearings.