The E-BikeKit Fat Tad Conversion System is a complete electric conversion kit made for the Sun Fat-Tad CXS tadpole recumbent trike. It includes a USA hand-built 20" fat rear motor wheel, a 48V 15Ah lithium battery, a matching 3A smart charger, a 3.5" full-color SINET™ LCD and model-specific installation parts.
The motor is a 750W nominal / 1000W peak geared hub motor. It has an internal planetary reduction and a clutch, so the wheel turns with minimal drag when motor power is not in use. The SINET™ sine-wave controller is built into the battery cradle, which reduces external components and simplifies wiring. The battery can be removed for charging or storage.
The kit is configured for the Fat-Tad CXS rear-wheel layout, fat-tire spacing, cockpit and cable routing. It has a short motor cable for compact rear routing and locking parking-brake levers with motor cutoff. You choose either a cadence sensor or a bottom bracket torque sensor for pedal assist. The cadence sensor gives assistance whenever the rider pedals. The torque sensor adjusts motor assistance in proportion to pedal force.
- Fits
- Sun Fat-Tad CXS tadpole recumbent trike
- Motor
- 750W nominal / 1000W peak geared hub motor, internal planetary reduction and clutch, disc-brake compatible
- Rear wheel
- USA hand-built 20" fat rear motor wheel
- Drivetrain
- 8-speed freewheel
- Rear spacing
- Fat-bike-style 170–190mm application range, with required spacing hardware
- Battery
- E-BikeKit 48V 15Ah lithium battery
- Controller
- SINET™ sine-wave controller integrated into the battery cradle
- Charger
- 3A smart charger
- Display
- SINET™ 3.5" full-color LCD with USB-C charging, diagnostics and advanced programming
- Display mount
- Topeak® BarXtender
- Pedal assist
- Cadence sensor (split-disc) or bottom bracket torque sensor (68mm square-taper, with required SINET™ extension cable)
- Brake levers
- Left and right mechanical e-brake levers with motor cutoff and parking lock
- Motor cable
- Fat-Tad-specific short cable
- Load
- Up to approximately 300 lb total system load, including trike, rider and cargo
- In the box
- Rear motor wheel, 8-speed freewheel, battery, controller cradle, charger, LCD display, SINET™ main wiring harness, thumb throttle, e-brake levers, short motor cable, Topeak® BarXtender, torque arms, C