Originally Posted by
pastorbobnlnh
Jon, remember the Perfect I built for my race up Kearsarge Mt back in September? I discovered that the middle cog used on a New Winner freewheel also threads on to the Perfect body. These cogs come in 19, 20, 21, & 22 tooth count sizes, IIRC, which would allow you to go with a lower high gear if needed. Keep this in mind if you need to make adjustments after a few test rides.
I'd smear a good layer of synthetic grease on the exposed threads in order to keep the rust from the road salt from attacking. Or better yet, drip candle wax all over it.
Whoa, great to know! It should have occurred to me that those threadings would be the same, but Perfects are pretty much all I ever fool around with. Pretty sure I have a couple of New Winners around here somewhere. If there's a 20-tooth cog among them, I may switch to a 20-26 in back and switch out the 42 in front for a 40 if I decide that the current high is too high. There's no good reason to go fast when riding in the winter around here and quite a few good reasons to go slowly.