X-Treme Scooters XB-305Li X-Treme Electric Bicycle, Black 20 mph, 20 miles per charge - 300 Watt brushless rear hub motor 7 LiPo4 batteries, removable pack - 7 Speed Shimano Tourney gears & shifter Variable speed twist throttle, cargo rack - Head light, LED light, battery indicator L 72, W 25in - Seat hgt 37 3/4 - 45 3/4in - Bike wgt 52lbs - Max rider wgt 350lbs 6 Month warranty, 1 year battery - Frame is lifetime