Originally Posted by
Sixty Fiver
Just about any derailleur works better with an HG or UG cog... the straight cut teeth on old freewheels can be a little ratchet like even with the best derailleurs although many of the later Suntour freewheels shifted quite nicely and are better inside than most Shimano freewheels.
I'll attest to that. I have two 7spd Suntour freewheels that shift great. One is an AP 13-30 and the other is something around the same time period......a 13-28....but, I don't remember the model offhand. It shifts equally well, though. Ah.....and, I have one 5spd UG freewheel and that sucker does shift nicely. I like how it sounds, too. Conversely, I have a 5spd Suntour 14-32 that shifts like dog dung. I'm going to break it down and use some of the cogs to build a half step sometime. Maybe tweak the teeth as I've read about others doing.
Anyway, thanks for the input, gentlemen. <<<thumbs up>>>>