You are looking at a brand new 49cc Pocket bike that goes 35-40 mph. This pocket bike has a centrifugal clutch (automatic) and a pull starter. We consider these bikes to be the best and fastest on the market. We have seen great results and few problems with these bikes since the day we started selling them.  These pocket bikes are great for children or adults. Children or adults need to be careful when riding because these bikes are fast!