E-Bike Conversion Kits

Electric bike conversion kits to turn your regular bicycle into an e-bike, with hub and mid-drive motor options.

An ebike conversion kit turns the bike you already own into an electric bike, adding a motor, battery, controller and display to a frame you know and trust. It is a practical way to get pedal assist for commuting, errands or longer weekend rides without starting from scratch. We hand-pick kits from established brands, so you can focus on choosing the setup that fits your bike and the way you ride.

Why Convert Your Bike

Converting keeps the fit, geometry and components you are already comfortable with.

Keep the bike you love. Your saddle, handlebars and riding position stay the same.
Choose your level of assist. From subtle, lightweight systems to setups for hills and cargo.
Repair-friendly design. Separate, serviceable components make upgrades easier.

Hub Motor Kit or Mid-Drive Kit

The first decision is where the motor sits. Each design has clear strengths.

Hub Motor Kit

A hub motor kit places the motor inside the wheel hub. It usually comes pre-built into a wheel, so installation is mostly a matter of swapping the wheel, mounting the battery and routing cables. Hub motors are quiet, low maintenance and work independently of your drivetrain, which means less wear on your chain and cassette. They are a great fit for flat to rolling terrain and everyday commuting.

Mid-Drive Kit

A mid-drive kit mounts at the bottom bracket and drives the chain directly, so the motor benefits from your bike's gears. That makes it efficient on steep climbs and keeps weight centered and low for natural handling. Installation is more involved, since it requires removing the crankset and bottom bracket, and it puts more load on the chain and cassette, so regular drivetrain maintenance matters.

Front vs Rear Hub

If you choose a hub motor, you will also decide between front and rear placement.

Front hub: Generally easier to install, especially if you have gears in the rear. It creates an "all-wheel drive" feel when you pedal. It works best on frames with sturdy steel or aluminum forks, and torque arms are strongly recommended. Avoid front hubs on carbon or lightweight suspension forks unless the manufacturer explicitly approves it.
Rear hub: Offers better traction because more of the rider's weight sits over the rear wheel. It feels more like a traditional e-bike and handles higher power well. Installation takes a little more care, since you will need to match your cassette or freewheel and dropout width.

How to Choose the Right Kit

Before buying an ebike conversion kit, check a few key details on your current bike:

Wheel size: Common sizes include 20", 26", 27.5", 700c and 29". The motor wheel must match.
Dropout width: Measure the spacing where the wheel mounts, typically 100 mm front and 135 mm or more rear.
Brakes: Note whether you have rim or disc brakes, as hub wheels need to support your braking system.
Bottom bracket type and width: Essential for mid-drive fitment.
Battery mounting: Check for bottle-cage bosses on the down tube or space for a rear rack.
Riding needs: Consider your terrain, rider weight, cargo and daily range.

Not sure what fits? Our team can help you check compatibility before you order.

Safety, Legal Classes and Maintenance

A converted bike is subject to the same rules as any other e-bike. Many US states use a three-class system, and your local regulations still apply:

Class 1: Pedal assist only, up to 20 mph.
Class 2: Throttle-assisted, up to 20 mph.
Class 3: Pedal assist only, up to 28 mph.

Check your state and local rules for where each class may ride, and configure your kit's settings to match. Always follow the manufacturer's installation instructions and torque specifications. If you are not comfortable with bike mechanics, a professional bike shop install is a smart choice.

Added speed and weight put more demand on your brakes and tires, so make sure both are in excellent condition. Inspect cable routing, connectors and mounting hardware regularly, keep electrical connections dry, and follow the manufacturer's guidance for charging and storing the battery.

Frequently Asked Questions

Can any bike be converted with an ebike conversion kit?

Most bikes with a solid frame and standard dimensions can be converted. Check wheel size, dropout width, brake type and bottom bracket before choosing a kit, and avoid frames or forks not rated for added motor torque.

Is a hub motor kit or a mid-drive kit better for hills?

Mid-drive kits typically climb more efficiently because they use your bike's gears. Hub motor kits handle moderate hills well and require less drivetrain maintenance.

Do I need special tools to install a conversion kit?

Hub motor kits often need only standard bike tools. Mid-drive kits usually require crank and bottom bracket tools. Always follow the manufacturer's instructions.