Kit - Direct Drive Rear Wheel

• Proven, reliable modular system design
• Hand-built wheel with 12-gauge stainless spokes & double-walled rim
• Full-color LCD with customizable speed limits & system settings

E-BikeKit Rear 500W Direct-Drive Hub Motor Conversion Kit with 48V 15Ah Lithium-Ion Battery Pack and 3A Charger.

This system is built for riders who need the increased durability of a direct-drive motor for heavier loads and long-term reliability from a lithium battery. The direct-drive hub motor used in this kit is intended for heavier applications and is a must for any total load (bike + rider + cargo) of 300 lb or more. This configuration pairs a heavy-duty motor with a 48V battery pack and is speed-limited to 20 mph to prioritize torque, stability, and performance under load.

Direct-drive motors are strong, durable, and long-lasting due to zero internal friction and no internal gears. Unlike some lower-quality or oversized direct-drive motors that can create noticeable drag, this E-BikeKit direct-drive hub motor is engineered for smooth, efficient operation.

Who’s it for? Riders who prioritize maximum durability and torque over ultra-light weight, including heavier riders, cargo applications, and utility trikes or bikes that operate regularly at or above 300 lb total load.

Every E-BikeKit heavy-duty rear conversion kit includes all of the core components you need:

• USA hand-built rear wheel with 500W direct-drive hub motor (disc-brake compatible)
• 48V compatible 22A 12FET motor controller
• Programmable full-color LCD dashboard
• PAS 12-magnet split disc
• PAS sensor, left-side mount (right-side mount available by request)
• Thumb or split-twist throttle
• Left and right e-brake levers
• Main motor cable
• 4-to-1 accessory cable
• Battery wire harness (included only when no battery is ordered)
• Battery and 48V 15Ah charger (only when ordered with the kit)
• Zip ties, C-washers, and torque arms

Battery mounting hardware is not included. Mounting solutions vary by frame and battery style.

Motor Specifications

• Brand: EBikeKit LLC
• Type: Direct-drive, brushless, disc-brake compatible
• Power: 500W nominal / ~1000W peak @ 48V
• Max Torque: 46Nm @ 48V
• Max RPM: ~259 RPM @ 48V
• Cable: 8″ axle exit, 3-phase / 5 Hall sensors
• Connector: Round 8-pin (10.4 mm)
• Motor Weight: ~12.8 lb (5.8 kg)
• Rear Dropout Spacing (OLD): ~135 mm with 7-speed freewheel & 15 mm disc offset
• Gearing/Freewheel: Designed for 7-speed freewheel (8/9/10-speed will increase OLD by ~3.5 mm per additional speed)
• Total System Load Rating: Up to ~600 lb (bike/trike + rider + cargo)

This system may be ordered with or without a 48V 15Ah lithium-ion battery pack and matching charger.

• Range: 15–45 miles (rider weight, terrain, and assist level dependent)
• Charging Time: ~5 hours with 3A charger (from near empty to full)
• Nominal Voltage: 48V
• Nominal Capacity: 15Ah (0.2C)
• Energy: ~720Wh
• Total Battery Weight: ~10.1 lb (4.6 kg)
• Cell Assembly: 18650-3.6V cells, 13S4P
• Life Cycles: ~500–800 charge cycles
• Max Continuous Discharge: 16A
• BMS Protection Current: 20A
• Discharge Cut-Off Voltage: ~37.5V
• Max Charge Voltage: 54.6V
• Internal Resistance: ≤230 mΩ
• Operating Temp (Charge): 0°C–113°F
• Operating Temp (Discharge): −68°F–140°F
• Storage Temp: 0°C–104°F (59–77°F recommended for long-term storage)
• Case Material: Plastic
• Certifications: UN38.3; MSDS; cells UL1642/2580-listed

This rear heavy-duty direct-drive system has been installed on many high-load bikes and trikes by experienced dealers and is a proven solution for demanding applications.

How to use this system in your shop:

• Ideal for heavier riders, cargo trikes, delivery bikes, and commercial/utility builds
• Use as your go-to option whenever total load will regularly exceed ~300 lb
• Pair with sturdy frames, quality tires, and reinforced racks for best results

Dealer Support Commitment:

• Real-time tech support via text, phone, and email
• Direct access to system builders and wheel technicians
• Guidance on rear dropout spacing, freewheel selection, and alignment
• Help planning battery placement and cable routing on complex frames
• Fast answers to keep your mechanics productive and installs on schedule

Our mission:
Give you the tools, information, and support you need to deliver reliable, high-load electric conversions that make your customers feel safe and impressed.

This rear heavy-duty direct-drive system fits many adult bicycles and trikes using standard rear dropouts.

Requirements:

• Rear dropout spacing ~135 mm (with room to adjust slightly for wider freewheels)
• Frame must accept a threaded freewheel (not a cassette-only hub)
• Steel or robust aluminum dropouts recommended for motor torque

Not Compatible With:

• Rear thru-axle frames
• Frames using internal geared hubs (IGH) where the motor cannot replace the hub
• Frames that cannot be safely spaced to accept the required OLD

If you are unsure whether a customer’s frame is suitable, send us photos of the rear dropouts and drivetrain and we will help you evaluate compatibility.

This heavy-duty rear-drive system installs with common bicycle tools and is designed for professional or experienced DIY installation.

• Remove the existing rear wheel and install the 500W direct-drive motor wheel into the 135 mm rear dropouts
• Install and properly torque both torque arms to protect the frame and dropouts from motor torque
• Fit and adjust the freewheel (7-speed standard; wider freewheels may require dropout spreading and re-spacing)
• Mount the controller securely and connect the motor, PAS, display, throttle, and e-brake levers using the color-coded connectors
• Install the PAS disc and sensor on the crank (left-side standard; right-side sensor available on request)
• Mount the battery securely to the frame using appropriate mounting hardware or a dedicated battery plate

Careful cable routing, correct torque-arm installation, and secure mounting are essential for safe, long-term performance — especially on heavy-load builds.