What makes this bike popular must be the rear disc brake, the reinforced frame and the tough appearance. The supers grip tires make emergency brakes possible. That’s not all, your child can also adjust the handlebars for a much comfortable ride. This is one of the few bikes in the market that offers riders a heavy duty Overhead-Valve (OHV) engine. With a top speed of 23 MPH and a Max Rec Rider Weight of 150lbs, your grown up kid will feel great taking this bike for a ride. With a wheel size of 14.5 x 7-6 and Seat Height of 24″, this bike feels like an adult bike. It uses the latest brake type that keeps your kid safe during emergencies. It has an 80cc overhead valve engine and an automatic clutch that ensures easy operation. This is an epic and affordable classic mini bike that only costs about $400. So what makes this bike so popular? Specs If you are looking for a better way to impress your child, then the MM-B80 Youth Mini Bike is what you should buy. So here is a look at the top 5 mini bikes you can buy. With so many models in the industry to choose from, you may end up getting the wrong bike. If your kid is a motorbike enthusiast, then you will probably want to get him/her a safe and powerful bike.