Rear Hub Motor 36V/48V 500W — Road-Legal Dual-Voltage Conversion Kit

The Smart Starting Point — Road-Legal, Dual-Voltage and Built to Last

Not every e-bike conversion needs to be an off-road powerhouse. For riders who want a reliable, efficient and road-legal upgrade that improves daily commutes, extends touring range and makes hills manageable without breaking the bank, this motor is the ideal solution. At 500W, it sits comfortably within a practical performance range for everyday use — powerful enough to make a genuine difference on gradient and fatigue, efficient enough to deliver excellent range from a modest battery pack, and legal enough to ride on public roads in the UK without modification.

The dual-voltage compatibility is one of its most practical strengths. Whether your existing battery is a 36V pack or you are starting fresh with a 48V configuration, this motor adapts to both without any hardware changes — an excellent choice for riders upgrading from an existing lower-powered system or who want the option to step up to a higher-voltage battery in future without replacing the motor itself.

Road Legal — A Key Advantage Over Higher-Wattage Kits

One of the most important distinctions of this motor is its road-legal status. Unlike the high-power 3000W and 2000W kits in the All4eBikes range — which are rated for off-road use only — this 500W hub motor can be legally ridden on public roads in the UK when configured correctly within the Electrically Assisted Pedal Cycle (EAPC) regulations. This opens up the full range of everyday riding scenarios: the morning commute, the weekend leisure ride, errands across town and light touring — all on public roads and cycle paths, without the legal restrictions that apply to higher-output systems.

This makes this motor fundamentally different in application from products such as the E-Bike Conversion Kit 3000W BLACK or the Rear Hub Motor 48V-72V 3000W, which are powerful off-road tools but not intended for public road use. If you are building a bicycle for daily transport rather than trail riding, this is the correct starting point.

Complete Kit Contents — Ready to Ride in Under an Hour

Every component required to convert a standard bicycle into a functioning electric bike is included in the box, and the straightforward installation process means most riders can complete the full conversion in under an hour:

Performance Characteristics — What 500W Delivers in Real Riding

This motor delivers a top speed range of 30–40km/h depending on battery voltage, rider weight and terrain — a comfortable and practical range for commuting and leisure riding. The brushless hub motor design ensures quiet, smooth operation throughout the speed range, with no cogging or mechanical noise that would intrude on a pleasant ride. Motor efficiency is rated at 80% or above, meaning a strong proportion of the energy drawn from the battery reaches the rear wheel as useful propulsion rather than being lost as heat.

36V vs 48V — Which Voltage to Choose

The 48V configuration provides noticeably stronger acceleration and a higher top speed than the 36V setup using the same motor, making the battery voltage choice a meaningful one depending on your priorities. Riders focused on maximum range from a smaller battery will find the 36V configuration efficient and effective. Those who want the strongest hill-climbing performance and the highest cruising speed should opt for a 48V battery to unlock the motor’s full capability.

For riders who find they want more power after experience with the 500W system, the natural upgrade path within the All4eBikes hub-motor range leads to the Rear Hub Motor 48V-52V 1500W and the Rear Hub Motor 48V-72V 2000W, both of which share the same fitting dimensions and installation approach as this kit.

Frame Compatibility and Installation

This motor is designed to fit any bicycle with a standard 135–138mm rear dropout — the measurement that covers the vast majority of mountain bikes, hybrid bikes, touring bikes and commuter frames. The rear motor wheel simply replaces your existing rear wheel, the controller mounts discreetly to the frame, and the display and throttle attach to the handlebars. No welding, no drilling and no permanent modifications are required. The entire conversion is fully reversible, meaning the original wheel can be refitted at any time.

For riders who want to explore a mid-drive alternative to the hub-motor approach, the BAFANG Mid Drive 250W offers a road-legal mid-drive option that keeps motor weight centred on the frame rather than at the rear axle — a different balance and ride characteristic that some riders strongly prefer for commuting and touring use.

Battery Compatibility and Recommended Pairings

This motor is compatible with both 36V and 48V lithium battery packs, and All4eBikes stocks a full range of options to pair with this kit:

Warranty and Returns

Every Rear Hub Motor 36V/48V 500W purchased from All4eBikes is covered by a 12-month warranty covering manufacturing defects across the motor and all included components, alongside a 30-day return window for complete purchase confidence. All4eBikes stocks the full range of replacement parts for this motor, ensuring long-term support for your build well beyond the warranty period.

Browse the complete e-hub wheel motor conversion kit range to compare power levels and find the right motor for your riding style, or explore the full battery range to find the ideal pack to pair with your build.