Okay, I'm thinking that the real problem with converting our bikes to belt-drive is finding a suitable front pulley. Oh, and of course, making sure it matches our shaft configuration. I think a 24 - 26 tooth count pulley will be the one to work, as long as it's 1.25 inches in width. Now I'm just spitballing here, so please any of you more knowledgeable folks feel very free to chime in.