Coleman BT20X's Both have built engines (everything internal upgraded, billet flywheel, mikuni carbs, wiseco pistons, valves, springs, rods, cam, etc.) LED lightning powered by DeWault battery. Many more upgrades like MX bars, front hydraulic disc brakes. (spent way too much on these) Will gladly answer any questions. Top speed about 50 mph and will climb anything thanks to regearing and torque converters. Selling because I'd like to get a four-wheeler. New bike will run you $700 plus and these have over $2000 in aftermarket parts each and are very well maintained. May consider trades. Thanks.