Build a powerful custom electric bike using this CE-approved Ncycle conversion kit. It is supplied from UK stock and includes the motor wheel, controller, display, throttle, pedal-assist components and fitting accessories required for a compatible conversion. Key features 72V 3000W brushless hub motor for rear-hub conversions Wheel-size options: 27.5 or 29 inch MTX39 rim 72V 60A FOC sine-wave controller with Bluetooth programming Colour TFT UKC1 Plus display Twist throttle with key lock Wuxing electric brake levers D12L pedal-assist sensor Single-speed freewheel Torque arm, controller bag, cable-management fastener, Bluetooth and installation accessories included Choose a compatible battery Select the kit on its own or add a compatible battery from the product options. Battery compatibility depends on voltage, BMS/discharge current, connector type, controller current and available frame space - not capacity alone.Battery-added variants include the selected battery, its supplied charger and the supplied mounting hardware. Check before ordering Confirm your bicycle wheel size and hub position Confirm dropout width (142mm rear dropout), axle fitment and brake compatibility Measure available battery and controller mounting space Professional installation is recommended if you are not experienced with high-power e-bike electrics Warranty and use Manufacturer warranty: 2 years for the motor and 2 years for Ncycle lithium batteries. This is a high-powered conversion kit and is intended for private-land/off-road use unless the completed vehicle is separately approved, registered and insured for public-road use.