Chainlube
Well-Known Member
Any commercially produced pulley you buy, even a small one is going to be heavy. Die cast even heavier. You have to buy or make a Whizzer type rear sheave. 6 inches isn't going to be able to get you rolling, a minimum of 16" is what you need. I saw a picture of a bike that the guy just welded another 26" rim to the side of the one already on the bike, and ran his belt on that.