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EZ-3 USX HD Electric Conversion System – 48V 15Ah Battery

EZ-3 USX HD Electric Conversion System – 48V 15Ah Battery

Best price now

$1,442.00at EBikeKit.comChecked 7 h ago

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Price facts

  • Lowest price today: $1,442.00 at EBikeKit.com (checked Nov 15, 2026).

Our take on the EZ-3 USX HD Electric Conversion System – 48V 15Ah Battery

A complete front-wheel electric conversion kit built for the EZ-3 USX HD recumbent trike. It pairs a 500W nominal front hub motor with a 48V 15Ah battery, an integrated sine-wave controller and a 3.5-inch color SINET LCD with USB charging, diagnostics and programming. The heavy-duty configuration targets higher-load trike use, and buyers choose a cadence sensor or a bottom bracket torque sensor. It suits trike owners who want powered assist on a stable three-wheel platform rather than a light road bike.

Best forEZ-3 USX HD trike ownersRiders carrying heavier loadsRiders who want pedal assist with throttle on demandTrike riders on hills or long commutes
Pros
  • Built specifically for the EZ-3 USX HD, with model-specific battery mounting hardware
  • 500W nominal front hub motor in a heavy-duty configuration
  • 48V 15Ah battery included
  • Choice of cadence sensor or bottom bracket torque sensor
  • 3.5-inch color SINET LCD with USB charging, diagnostics and programming
  • Locking e-brake levers and throttle on demand
Cons
  • Fits only the EZ-3 USX HD, not other trikes or bikes
  • Front hub drive changes steering feel and front-wheel traction
  • Battery and motor add weight to the trike
  • Installation requires wiring, sensor fitting and LCD mounting

EZ-3 USX HD Electric Conversion System – 48V 15Ah Battery prices at every store

  • EBikeKit.comNew

    In stockReturn policy

    $1,442.00Checked 7 h ago
    Visit EBikeKit.com

About the EZ-3 USX HD Electric Conversion System – 48V 15Ah Battery

This is a front-wheel electric conversion system made for the EZ-3 USX HD trike. It uses the SINET platform with a 500W nominal front hub motor and an integrated sine-wave controller. The existing rear axle and drivetrain stay unchanged.

The 48V 15Ah lithium-ion battery slides into the SINET battery/controller cradle, which houses the controller. EZ-3 USX HD-specific mounting hardware holds the battery on the trike. A Topeak handlebar extender provides a mounting spot for the LCD.

The system is configured for higher-load use such as cargo hauling, daily transportation and extended riding. Pedal assist comes with either a cadence sensor or a bottom bracket torque sensor. The cadence sensor detects crank rotation and does not measure rider force. The torque sensor measures how hard the rider pedals and gives proportional assist. Throttle-on-demand is included, and both locking e-brake levers cut off the motor.

Compatibility
EZ-3 USX HD trike
Motor
500W nominal front hub motor, USA hand-built motor wheel
Battery
48V 15Ah lithium-ion
Charger
3A smart charger
Controller
Integrated SINET sine-wave controller, housed in the battery cradle
Display
3.5" full-color SINET LCD with USB charging port
Display features
Battery voltage and level, current speed, trip meter, odometer, pedal-assist level selection, walk-assist mode, error diagnostics, advanced programming menu
Pedal assist
Choice of cadence sensor or bottom bracket torque sensor
Cadence sensor kit
External cadence sensor and magnet disc
Torque sensor kit
SINET 68 mm square-taper torque-sensing bottom bracket with SINET extension cable
Torque sensor needs
Compatible 68 mm square-taper bottom bracket fitment and a protected 3/8-inch cable-routing hole through the bottom bracket shell
Controls
Thumb throttle, left and right locking e-brake levers with motor cutoff
Connectors
Matched waterproof electrical connectors
Recommended load
Up to 400 lbs total

Questions and answers

What exactly is included in the kit?
The front hub motor, the 48V 15Ah battery, the integrated sine-wave controller, the 3.5-inch color SINET LCD, a Topeak handlebar extender for mounting the display, and EZ-3 USX HD-specific battery mounting hardware. Locking e-brake levers and throttle-on-demand are part of the system.
Should I pick the cadence sensor or the torque sensor?
The cadence sensor adds assist once you start pedaling and is the simpler setup. The bottom bracket torque sensor meters assist by how hard you pedal, which feels more natural but takes more installation work.
Will this fit a trike other than the EZ-3 USX HD?
No. The system and its battery mounting hardware are made specifically for the EZ-3 USX HD, so it is not a universal kit for other trikes or bicycles.
What does the LCD let me do?
The 3.5-inch color SINET display shows ride data, runs diagnostics and allows programming of the system. It also has a USB port for charging a phone or other device.
How does front-wheel drive affect the trike?
Power goes to the front wheel, so steering feel and front-wheel traction change, especially on loose or wet surfaces. The heavy-duty configuration is built for the higher loads a trike carries.
Where is the EZ-3 USX HD Electric Conversion System – 48V 15Ah Battery cheapest?
At EBikeKit.com, for $1,442.00, as of our latest check.

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