Yes, I have used two of those same exact motors on mini bikes. They are high revving motors, 10 to 12,000 R.P.M.'s but they don't have much power. They are also set up for very small #25 chain which is pretty fragile. That is why I used them on small mini bikes where the rider would weigh less than 100 pounds. The price was right though. That is really cheap on e-bay. I think I paid $99.00 when I bought them.