X-pro Rambler 700W 350W*2 Kids Electric Go Kart with Reverse and Disc Brake! 6" Tires! Powerful 350W*2 Motor puts out strong, predictable power! Not need gasoline, no air pollution! Battery Type: 12V/20Ax2 Lead-acid battery. Max Speed: 10mph. Front and Rear Disc brakes supply strong, reliable stopping power. Front 200x75 and Rear 80/60-6" wheels offer great traction. Kindly Notice: If storing your bike for long periods, charge the battery every 10 days to avoid battery dead. Some Assembly Required. Specifications Model Number GK-U05 Engine/Drive Train Motor 350W*2 Battery 12V/20Ax2 Lead-acid battery Max Speed 10mph(Depending on Riders Weight and Road Conditions) Reverse Yes Mileage at full charge 28-35km Charging Time 4h Start type Power Switch Drive Mode Hub motor Turning Radius ?5M Climbing Ability ?15 Frame /Body/ Suspension / Brakes Front Brake Disc Rear Brake Disc Front Tire 200x75 Rear Tire 80/60-6 Capacities / Dimensions Weight Capacity(lbs) 143 Net Weight (lbs) 99 Gross Weight (lbs) 150 Overall Length 51.18" Overall Width 29.5" Overall Height 27.6" Carton dimension (L*W*H/in) 42 x 28 x 14" Seat Height 4.72" Ground Clearance 1.57" Wheelbase 31.1" Safety / Control Engine Kill Switch Yes Speed Limiter Yes Foot Brake Yes Free Items Free: Liftgate Service MSRP: $999 Psmx