This bike has been kinda a work in progress. I first had regular bicycle rims on it, I had a 7 speed hub and I was planning on adding a shift kit. But then I put a reed valve on and it seemed to add enough extra power so I decided I didn't really need the shift kit and gears. So then I decided to get mag wheels with just a single peddle gear and at the same time I decided to change my 40 tooth sprocket to a 36 tooth sprocket and with a smaller sprocket I had to take some links out of my engine chain and that's when I took too many out and made it too short.