Performance Top Speed: Up to 100 km/h/60mphMotor: 5000W Gearless Hub (MTX 39 Rim)Controller: 80A Smart Controller (XT90)Display Options: SW900 or UKC1Best For: Extreme performance, aggressive riding, all-terrain use Estimated Range: 30AH 95–145km 40AH 145–190km Includes 5000W Gearless Hub Motor (MTX 39 Rim) 72V 30Ah/40Ah Battery (Grade A cells) 80A Sine Wave Controller SW900 or UKC1 Display Twist Throttle Brake Levers with Cut-Off Sensors 12-Magnet PAS Sensor 2× Torque Arms Battery: 72V 30ah-40ah (A‑grade cells, Smart BMS)-All Arctic Ebikes batteries are equipped with an advanced Battery Management System (BMS) that continuously monitors voltage, temperature, and current to keep the battery operating safely and efficiently. Built-in protections against overcharging, over-discharging, short circuits, overheating, and excessive current draw help maximize battery lifespan while giving you complete peace of mind on every ride. The Arctic Ebikes 72V batteries are rated IP54, providing reliable protection against dust and water splashes, so you can ride confidently in light rain and challenging weather conditions. keep in mind 150mm dropouts, Requires quick-release (open dropout) frame,Apply Loctite to rotor screws to prevent motor wire damage