The machine work and nylon liners are spot on. Very smooth rotation. I normally don't drop money on parts like this, but with my second plastic tube damaged I thought I'd try it out. Not so sure I agree with the quick turn bit. If its quicker its not by much. I find it has much less resistance there fore a "quicker turn". This product will go on future bikes the same time as the WC clutch perch from now on. Buttery smooth, but they lost a star for the asking price.