E-BikeKit Front Wheel Conversion System – 48V 15Ah Battery

• Complete SINET™ front-wheel electric bike conversion system with 48V 15Ah lithium-ion battery included
• 500W nominal front hub motor system with smooth sine-wave motor control
• Standard 100 mm front dropout spacing
• Choose cadence or bottom bracket torque-sensing pedal assist
• 3.5" full-color SINET™ LCD with USB charging port, diagnostics, and programming
• USA hand-built front motor wheel with 12-gauge stainless steel spokes and double-wall aluminum rim
• Thumb throttle and locking e-brake levers included

The E-BikeKit Front Wheel Conversion System is a complete front-wheel electric conversion package for compatible bicycles, adult tricycles, cargo bikes, and specialty cycles. It combines a USA hand-built front motor wheel with the latest SINET™ electronics, a 48V 15Ah battery, and the controls and wiring needed to complete the conversion.

SINET™ combines quiet sine-wave motor control with your choice of cadence or torque-sensing pedal assist for smooth acceleration, refined throttle response, and a responsive riding experience.

Because the motor is installed in the front wheel, your existing rear wheel and drivetrain remain unchanged.

Front-Wheel Electric Bike Conversion System

The E-BikeKit Front Wheel Conversion System is designed for riders who want a clean, efficient electric conversion without changing the rear drivetrain. The motor wheel installs in a compatible front fork with standard 100 mm dropout spacing.

The SINET™ controller is integrated into the battery cradle, reducing external components and creating a cleaner installation. The system includes the matching E-BikeKit 48V 15Ah lithium-ion battery and 3A charger, so there is no separate controller box to mount.

Ordering is simple: choose the correct front wheel size and select either cadence or bottom bracket torque-sensing pedal assist. Front dropout spacing is always 100 mm for this system.

Front wheels are USA hand-built using 12-gauge stainless steel spokes and double-wall aluminum rims.

Who is this system for? Riders converting compatible bicycles, adult tricycles, cargo bikes, or specialty cycles who want a complete front-wheel system with the battery included while preserving the existing rear drivetrain. Recommended total load is up to approximately 300 lb, depending on the bicycle and application.

• USA hand-built front hub motor wheel in the selected wheel size
• 48V 15Ah lithium-ion battery
• Integrated SINET™ sine-wave controller housed in the battery cradle
• Integrated SINET™ battery/controller cradle
• 3A smart charger
• SINET™ 3.5" full-color LCD with USB charging port
• SINET™ component wiring harness
• Thumb throttle
• Left and right mechanical e-brake levers with motor cutoff and parking lock
• Motor cable
• Torque arm(s), washers, zip ties, and installation hardware as required

Your pedal-assist selection determines the sensor included:

• Cadence Sensor: Left-side external cadence sensor with 12-magnet split disc
• Bottom Bracket Torque Sensor: 68 mm square-taper torque-sensing bottom bracket with required SINET™ extension cable

Display Mounting Note: A handlebar extender is not included with this universal system. Most standard bicycles can mount the LCD directly to the handlebars. Some bicycles and many adult tricycles may require a separate display mounting extension because of baskets, handlebar shape, or steering geometry.

The SINET™ platform combines the controller, display, pedal-assist input, throttle, brake cutoffs, motor connection, and battery interface into a matched electrical system.

• Quiet, efficient sine-wave motor control
• Integrated controller housed in the battery cradle
• 3.5" full-color LCD with USB charging port
• Matched waterproof electrical connectors
• Cadence and torque-sensing pedal-assist compatibility
• Throttle-on-demand
• Motor cutoff through both e-brake levers
• Cleaner installation with fewer external components

This system is designed around a standard 100 mm front fork dropout spacing. Unlike a rear-wheel conversion, there is no freewheel, rear drivetrain, or variable dropout-spacing selection to configure.

• Front Dropout Spacing: 100 mm
• Wheel Size: Select the wheel diameter that matches your bicycle or tricycle
• Rear Drivetrain: Remains unchanged
• Fork Type: Conventional slotted front dropouts required

Check fitment before ordering. Front thru-axle forks are not compatible. If you are unsure whether your fork is suitable for a hub-motor conversion, contact E-BikeKit before ordering.

Cadence Sensor

The cadence sensor detects crank rotation and activates pedal assistance according to the assist level selected on the LCD. It is an external left-side sensor and is the simpler installation option for most conversions.

• Left-side external sensor
• 12-magnet split disc
• Detects crank rotation
• Simple installation on compatible bikes and trikes
• Does not measure rider force

Bottom Bracket Torque Sensor

The optional bottom bracket torque sensor measures rider effort and provides motor assistance in proportion to how hard you pedal, creating a smoother and more natural riding feel.

• 68 mm square-taper bottom bracket
• Required SINET™ extension cable included
• Measures rider pedaling force
• Provides smooth, proportional assistance
• Requires compatible 68 mm square-taper bottom bracket fitment
• Installation requires a protected cable-routing hole through the bottom bracket shell

Which should you choose? Cadence sensing is simpler to install and provides dependable traditional pedal assist. Torque sensing provides the more natural and responsive riding experience but requires compatible bottom bracket fitment and a more involved installation.

The SINET™ Bottom Bracket Torque Sensor provides smooth, proportional pedal assist by measuring how much force you apply to the pedals. It provides a more natural riding feel than traditional cadence-only pedal assist, but installation is more involved.

Before selecting the torque sensor, please understand the installation requirements:

• Your bicycle or tricycle must have a compatible 68 mm bottom bracket shell
• The torque sensor is designed for use with square-taper cranks
• Both crank arms and the existing bottom bracket must be removed
• A 3/8-inch cable-routing hole must be drilled through the bottom bracket shell
• The torque-sensor cable is routed through the 3/8-inch opening
• The supplied rubber grommet seats in the opening to protect the cable and provide a clean finished installation
• Proper crank and bottom-bracket removal tools are required

Can I install the torque sensor myself?
Yes. If you are comfortable removing crank arms and a bicycle bottom bracket, installing a replacement bottom bracket, drilling the required 3/8-inch cable-routing hole, and completing the rest of the conversion, this installation can be performed by an experienced DIY installer.

We recommend reviewing the installation requirements and watching the installation video below before choosing the torque-sensor option so you can decide whether this is a job you are comfortable performing yourself.

Torque Sensor Installation Video

Watch the complete installation process for the SINET™ 68 mm square-taper bottom bracket torque sensor, including crank and bottom-bracket removal, drilling the 3/8-inch cable-routing hole, routing the sensor cable, installing the torque sensor, and seating the protective grommet.

Watch the SINET™ Torque Sensor Installation Video on YouTube →

Important: This video demonstrates installation on a compatible 68 mm square-taper bottom bracket. Some traditional upright tricycles use a one-piece crank and require additional crank-conversion components before the SINET™ torque sensor can be installed.

Prefer a simpler DIY installation?
Choose the Cadence Sensor. It provides dependable pedal assist without replacing the bottom bracket or drilling a cable-routing hole.

Want a Shop to Handle the Installation?

If you would rather have the conversion professionally installed, start with the E-BikeKit Dealer Locator. Enter your ZIP code to find participating dealers near you, then contact the shop directly to confirm installation availability.

Find an E-BikeKit Dealer Near You →

No E-BikeKit dealer nearby? Contact a local bicycle shop and ask whether they are willing to install an electric bike conversion system. Give the shop our contact information and have them call us directly. We can quickly help them get set up as an E-BikeKit dealer, review the system with them, and provide technical support for your conversion.

If you find a local shop that is interested but would prefer that we contact them, contact E-BikeKit and provide the shop's information. We can reach out and help get the process started.

Questions before ordering? Call E-BikeKit at 1-866-882-3245, Monday–Friday, 9am–5pm EST, or email support@ebikekit.com.

The included SINET™ 3.5" full-color LCD provides clear ride information along with system setup, diagnostics, and programming controls.

• 3.5" full-color display
• USB charging port
• Battery voltage display
• Battery level indicator
• Current speed
• Trip meter and odometer
• Pedal-assist level selection
• Walk-assist mode
• Error diagnostics
• Advanced programming menu

Watch the video below for an overview of the SINET™ LCD, including initial setup, programming, display operation, and commonly used system settings.

Watch the SINET™ LCD Programming Guide on YouTube

Download the SINET™ LCD quick-start guide for display operation, setup, programming, and system settings.

Download the SINET™ LCD Quick-Start Guide (PDF)

• System Type: Front-wheel electric bike conversion system
• Nominal Motor Power: 500W
• System Voltage: 48V
• Motor Type: Brushless internally geared front hub motor
• Front Dropout Spacing: Standard 100 mm
• Controller: Integrated SINET™ sine-wave controller housed in battery cradle
• Battery: 48V 15Ah lithium-ion battery included
• Charger: 3A smart charger included
• Display: SINET™ 3.5" full-color LCD with USB charging port
• Throttle: Thumb throttle included
• Pedal Assist: Cadence sensor or 68 mm bottom bracket torque sensor
• Wheel Build: USA hand-built
• Spokes: 12-gauge stainless steel
• Rim: Double-wall aluminum
• Recommended Total Load: Up to approximately 300 lb depending on bicycle and application

This system includes the current E-BikeKit 48V 15Ah lithium-ion downtube battery, integrated SINET™ controller cradle, and matching 3A charger.

Battery Mounting: The battery slides into and locks onto the included battery/controller cradle. The cradle has two mounting holes designed to work well with standard downtube water-bottle mounting bosses when the frame provides a suitable location.

A frame-specific battery mount is not included. The cradle may also be installed in another secure, structurally appropriate location where a suitable mounting surface can be provided. For example, it may be mounted to a suitable rear rack when the rack can be safely drilled and the cradle securely fastened.

For many recumbent bicycles and trikes, E-BikeKit also offers a Universal Recumbent Trike Downtube Battery Mount that provides an alternative mounting solution when conventional downtube mounting is not available.

Battery mounting requirements vary by frame. The cradle must be attached to a secure, structurally appropriate mounting location. If you are unsure where or how to mount the battery on your bicycle or tricycle, contact E-BikeKit before ordering.

• Nominal Voltage: 48V
• Capacity: 15Ah
• Energy: Approximately 720Wh
• Cell Configuration: 21700 cells, 13S3P
• Maximum Continuous Discharge: 30A
• BMS Protection Current: 30A
• Maximum Charge Voltage: 54.6V
• BMS Low-Voltage Protection: 36V
• Battery-to-Cradle Interface: Four-blade contact system
• Controller: Integrated into battery cradle
• Estimated Range: Approximately 15–45 miles depending on rider input, terrain, assist level, speed, temperature, and load
• Charger: 3A smart charger included
• Charge Time: Approximately 5 hours
• Expected Life: Approximately 400–500 charge cycles

View the 48V 15Ah Battery Dimensional Drawing (PDF)

Actual range varies considerably with rider weight, terrain, speed, tire pressure, temperature, throttle use, pedal input, assist level, and total vehicle load.

The E-BikeKit Front Wheel Conversion System is designed for compatible bicycles, adult tricycles, cargo bikes, and specialty cycles with standard 100 mm conventional slotted front fork dropouts.

Before ordering, confirm:

• Correct front wheel size
• Standard 100 mm front fork dropout spacing
• Conventional slotted fork dropouts
• A suitable location to securely mount the battery/controller cradle
• Bottom bracket compatibility if selecting the torque sensor

Fork & Torque Arm Notes:

• Steel forks are recommended
• Torque arms must be installed where required
• Aluminum forks require particular care and properly installed torque arms
• Confirm that the fork is suitable for a hub-motor installation before ordering

Not Compatible With:

• Front thru-axle forks
• Weak, damaged, or unsuitable fork dropouts
• Forks that do not provide standard 100 mm dropout spacing
• Suspension forks not designed or approved for hub-motor installations
• Frames without a suitable location for secure battery/controller cradle mounting
• Bottom brackets incompatible with the selected pedal-assist system

If you're unsure about fitment, contact E-BikeKit before ordering. Photos of your front fork/dropouts, bottom bracket area, handlebars, and intended battery mounting location can help us confirm compatibility.

Installing a front-wheel electric conversion system requires mechanical bicycle work as well as mounting and routing the electrical components. Professional bicycle-shop installation is recommended if you are not experienced with bicycle wheels, brakes, forks, and electrical conversion systems.

• Install the motor wheel into standard 100 mm front fork dropouts
• Install the supplied torque arm(s) as required and properly tighten axle hardware
• Mount the integrated battery/controller cradle securely
• Install the 48V 15Ah battery into the cradle
• Install the LCD, thumb throttle, locking e-brake levers, and selected pedal-assist sensor
• Route and secure all wiring away from moving parts, steering components, tires, chains, and sharp edges
• Verify brake cutoffs, throttle operation, pedal assist, wheel clearance, battery fitment, steering movement, and display settings before riding

Proper wheel fitment, axle security, torque-arm installation, brake adjustment, battery mounting, and cable routing are essential for safe and reliable operation.

Learn more: Top 25 Frequently Asked Questions

E-BikeKit technical support is available before and after your purchase to help with product selection, compatibility, installation, setup, and replacement parts.

Questions? Call us toll-free at 1-866-882-3245, Monday–Friday, 9am–5pm EST, or email support@ebikekit.com.

Battery shipping: Lithium-ion batteries ship separately via FedEx Hazmat and may require a delivery signature. It is normal for the conversion system, battery, charger, or mounting components to arrive in multiple shipments or on different days.