The Mule ST was designed and engineered around the unparalleled power and performance of Bafangs Ultra mid-drive motor. The Ultra motor is also referred to as a “smart motor”. The speed, cadence, shift, brake and torque sensors provide continuous feedback from the rider to the motor. Because of these sensors, the motor can deliver exactly what you ask. The Mule ST model is for customers with a shorter inseam or those that have difficulty getting on and off of a step-over eBike. The Mule ST is built like the Mule, with the exception of a lower top tube allowing for a shorter stand over height. The mule features Bafang M620 Ultra this smart torque sensing G510 motor is capable of falling under all three classifications of ebike laws. Toggle between 750 watts, 1,000 continuous watts with a max power output of 1,500 watts; performance- 160NM of Torque/1500 peak wattage output; DP C18.UART full color LCD; Tektro HD E750 Quad Piston Hydraulic, 203mm front & 180mm rear rotor; BCEB GT MRK 100mm AIR Fork suspension; size is 18″ with a stand over height of 29.50″; Preformance- 85NM Torque/500W Peak Output per motor; left thumb throttle; 150mm Thru Axle Front Hub/Rear Hub 3/8x 26 tpi 190mm wheels; Shimano Alivio Hill-Climbing 9 speed, 40t Front 11x36t cassette; shock absorbing suspension seat post; front and side rear Derailleur Guards; SR Sport saddle and aggressive skid-proof wide stance pedals. Includes extended distance 48V 25ah Li-Ion battery, rear pannier rack, 2 AMP smart charger; puncture proof tire liner and rear mud fender. *Note- headlight & front mud fender are NOT included with the Mule.