Sorry if this was posted in the wrong area. I'm currently working on building a motorized bicycle. I built one before with one of the chinese 4 stroke kits but this one is just much bigger that what i had originally imagined. I currently have a 212cc Predator Engine, I've heard they mess up spoke and didn't bother worrying about it because i have a sprocket mounted to my rear wheel. I'm attempting to jackshaft it, the problem is: I don't know gearing and so im hoping someone can help me out. the way I am attempting to jackshaft it is to have the drive sprocket on the left while the wheels sprocket is on the right. I really could use the help and wisdom of people who have been at this awhile. thank you for taking the time to read this - Beach cruiser ~shcwinn - 212cc Predator engine - not much else is gathered except the kill switch and minor stuff.