The SUPER73-M1D SE combines the A-Series' 30-inch seat height with a 750W nominal motor, 780Wh battery, adjustable front suspension, four-piston hydraulic brakes, a digital display, and MAXXIS SuperSucker tires. It also includes lockable internal storage and support for a modular secondary battery.Key specifications Top speed: Class 2, 20 mph Range: 25–30 miles with one 780Wh battery; 50–55 miles with two 780Wh batteries Charge time: 6–7 hours Battery: 780Wh (52V 15Ah), UL 2271 compliant Motor: 750W nominal Throttle: Thumb throttle Gearing: Single speed Vehicle weight: 88 lb Dimensions: 66 × 28.5 × 41 in Rider weight limit: 250 lb Recommended rider height: 5 ft 2 in–6 ft 2 in Seat height: 30 in Frame: Aluminum Suspension: Adjustable front Brakes: SUPER73 4-piston hydraulic Tires: MAXXIS SuperSucker, 4.5 in front / 5 in rear Inner tubes: 20 × 4.5 in Lights and horn: LED headlight, LED taillight, horn Please note: A modular secondary battery is sold separately. Range estimates vary with rider weight, speed, temperature, wind, tire pressure, terrain, incline, and other riding conditions. This model is sold in Class 2 mode.