i joined a facebook group (world of the custom bicycle) where someone has a 135sp (if i'm remembering right. somewhere in there). he admitted there's probaly some ratio duplication, but it's still a fun looking project. i'm still considering a 45-63 speed project.
it's just occurring to me if i put on a tension idler and used a triple chainring on the front of the bike i mentioned a few posts above i could get up to 63 (hmmm... using a sram dual drive would kick that up into triple digits...hmmm...), but i don't know if it would mess up it's being a favorite cruiser.
Last edited by Philphine; 04-06-18 at 09:02 AM.