Kit - Tandem Bikes

• Engineered for heavy tandem bicycle loads
• Hand-built wheel with 12-gauge stainless spokes & double-walled rim
• Full-color LCD with customizable limits & system settings

E-BikeKit Heavy-Duty 500W Direct-Drive Conversion System for Tandem Bicycles.

This system is built specifically for tandem bicycles and other high-load applications where extra durability and smooth, predictable torque are essential. The 500W direct-drive hub motor provides strong, stable output with excellent long-term reliability and no internal gears to wear out.

Who’s it for? Ideal for teams riding tandem bikes or any setup where total system weight (bike + riders + cargo) reaches or exceeds 300 lb. Designed for consistent low-end torque, thermal stability, and smooth hill-climbing, with a top speed of approximately 20 mph.

The included full-color LCD display and 48V 12FET controller enable clean, predictable power delivery with pedal-assist and throttle-on-demand options.

Every Heavy-Duty Tandem Kit Includes:

• USA hand-built wheel with 500W direct-drive hub motor (disc-brake compatible)
• 48V compatible 22A 12FET motor controller
• Programmable full-color LCD dashboard
• 12-magnet PAS split disc
• PAS sensor – left-side mount
• Thumb throttle
• Left & right e-brake levers
• Main motor cable
• Accessory cable (3-to-1 or 4-to-1 depending on configuration)
• Pedal-assist extension cable (tandem-specific)
• Freewheel
• Battery & charger (only when battery option is selected)
• Zip ties, C-washers, and torque arm

Battery mounting hardware is not included — tandem frames vary and require custom mounting solutions.

• Brand: EBikeKit LLC
• Type: Direct-drive (brushless, disc-brake compatible)
• Power: 500W nominal / >1000W peak @ 48V
• Max Torque: 46 Nm @ 48V
• Max RPM: ~259 RPM @ 48V
• Weight: ~12.8 lb (5.8 kg)
• Cable Exit: 8″ axle exit — 3-phase / 5 Hall sensors
• Connector: Round 8-pin (10.4 mm)
• Total Load Rating: Up to ~600 lb (tandem + riders + cargo)

This kit may be ordered with or without a 48V 15Ah lithium-ion battery pack.

• Range: ~15–45 miles depending on terrain, rider input, and load
• Charge Time: ~5 hours (3A charger)
• Nominal Voltage: 48V
• Nominal Capacity: 15Ah
• Energy: ~720Wh
• Total Weight: ~10.1 lb (4.6 kg)
• Cell Format: 18650 lithium cells (13S4P)
• Life Cycles: ~500–800
• Max Continuous Discharge: 16A
• BMS Protection Current: 20A
• 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 (preferably 59–77°F)

If ordered without a battery, no battery or charger is included.

This Heavy-Duty Tandem Kit has been installed successfully by many dealers and is a proven solution for 2-person bicycles and other high-load applications.

How to position this system:

• Recommend whenever total system weight approaches or exceeds 300 lb
• Ideal for tandem touring, recreational riding, or commercial two-rider applications
• Direct-drive motor provides excellent thermal stability and durability under load

Dealer Support Commitment:

• Real-time install support via text, phone, and email
• Direct access to system builders and wheel techs
• Guidance for torque-arm placement and dropout reinforcement
• Support for custom battery mounting on long frames

If your shop needs help with a specific tandem model:
Send photos of the rear dropouts, frame spacing, and crank setup — we’ll walk you through the correct configuration.

This system is designed for tandem bicycles with standard rear dropouts.

Compatible With:

• Standard rear dropouts (QR axle)
• Steel or reinforced aluminum tandem frames
• Bikes that accept threaded freewheels

Not Compatible With:

• Rear thru-axle tandems
• Bikes designed exclusively for cassette hubs
• Frames that cannot safely handle torque from direct-drive motors

If you want us to verify fitment, send dropout and drivetrain photos for confirmation.

This heavy-duty tandem system installs using common bike tools and includes all essential hardware.

• Install the rear motor wheel into standard tandem dropouts
• Install torque arms and torque axle nuts to spec
• Mount the controller and route wiring with matched connectors
• Install PAS disc and sensor (left side standard)
• Mount thumb throttle and e-brake levers
• Securely mount the battery to the tandem frame using an appropriate rack or custom mounting plate

Correct torque-arm installation and clean cable routing are critical for the long-term durability demanded by tandem use.