Electric Bike Conversion: Adding Assist To Your Ride

Electric bike conversion kits are a popular way to turn your bike into an e-bike. E-bikes are a more sustainable and greener mode of transport, and they can also be used for daily commutes, hauling cargo, or weekend adventures. Conversion kits are a more affordable option than buying a new e-bike, and they can be easily installed on your existing bike. The process of converting a bike to electric power involves adding a motor and a battery, and there are different types of kits available, such as friction drive, mid-drive, and wheel hub motors. These kits can be purchased and installed with the help of a dealer, or you can follow a step-by-step guide to do it yourself.

Conversion kits

Electric bike conversion kits are a great way to give your existing bike a boost. They are an affordable option to get the benefits of power-assisted cycling without the large upfront cost of a new e-bike. Conversion kits are ideal for those who want to broaden their range of riding, making cycling more accessible and fun.

There are a few things to consider when choosing a conversion kit. Firstly, ensure your bike is suitable for conversion. Check the compatibility of the kit with your bike's design, especially if you have a newer, more expensive model. You may need to replace your bike's crank to fit the pedal sensor, and consider upgrading to disc brakes. The kit's motor and battery options are also important factors. The 250-watt motor is a popular choice, with the option to add additional batteries to increase the range. The type of hub motor is another consideration, with "geared" and "direct-drive" motors offered by EBikeKit, each with unique properties to suit your riding style.

When installing the kit, you'll need to set up the wheel with a disc rotor, tyre, and inner tube. Attach the cadence sensor to detect when you're pedalling, then connect the battery and LCD display. Some kits may require removing the bike's crank to fit the pedal sensor, and you may need to solder connections for added protection. Conversion kits can be complex to install, so it's recommended to seek support from a dealer network or someone familiar with electrics.

Compatibility

Firstly, you should consider the compatibility of the motor with your bike. The power output, torque, and compatibility with your bike's wheel are important factors to take into account. For example, a mid-motor drive system can produce more torque, making it more effective on steep and bumpy terrain. It also has greater compatibility, as it does not depend on wheel diameters, hub widths, axle standards, or brake type. However, it does require an alloy frame and a bottom bracket width of 68-73mm, which is still compatible with most bikes.

Secondly, the battery is an important consideration. You should think about the voltage, capacity, and weight of the battery, and how these factors will affect your bike's performance. If you want to ride longer distances, opt for a battery with higher capacity. You can also add a battery bag to protect and transport your battery.

Thirdly, the kit should be compatible with your bike's frame, wheel size, and braking system. For example, some conversion kits are only compatible with bikes that have a front disc brake and a Quick-Release axle. Additionally, check the compatibility with your bike's drivetrain and any accessories you may want to add, such as a throttle or display.

Finally, consider the compatibility of the kit with your specific needs and preferences. If you plan to use your bike for commuting, you may want to consider a kit with a smaller battery size to maintain the classic look of your bike. Alternatively, if you want to cover more distance with less effort, you can opt for a kit with a larger battery capacity.

Overall, ensuring compatibility between the electric assist kit and your bike will provide an optimal riding experience and ensure your safety.

Installation

The first step in the installation process is to set up the wheel with a disc rotor, tyre, and inner tube. Once this is done, you can install the wheel into the bike. Next, attach the cadence sensor, which will detect when you are pedalling and need assistance. After this, attach the battery and the LCD display, if your kit includes one. Some kits may also offer an optional LED display to track your battery level and unlock extra power modes.

Depending on the type of kit you choose, you may need to remove the bike's crank to fit the pedal sensor. This can be a fiddly process, and it is important to ensure that all connections are secure and protected from the elements. Some kits may require soldering and heat-shrinking for added protection.

If you are installing a front wheel kit, you will need to replace the front wheel with a motorized one. Some kits may also offer customization options for the front chainring size, battery size, and display preferences.

For mid-drive conversion kits, you will need to remove the bottom bracket and fit the drive on the front of the down tube. This type of kit has the advantage of placing the weight low down on the bike, making it more stable.

It is important to note that electric bike conversion kits can vary significantly, and you should always refer to the specific instructions provided by the manufacturer for your chosen kit.

Maintenance

Battery Care:

• Battery maintenance is essential for the proper functioning of the electric assist system. Store the battery in a cool, dry place to prevent damage from heat or moisture.
• Avoid overcharging the battery, and follow the manufacturer's guidelines for charging requirements.
• Do not let the battery fully discharge before recharging, as this can damage the cells. Instead, keep the battery partially charged (around 50%) when storing for extended periods.
• Develop good habits for charging and storing your battery to maximize its lifespan.

Regular Cleaning and Lubrication:

• Regularly clean and lubricate the chain, gears, and other moving parts to prevent wear and tear. This includes the bike's tires, brakes, and chain, which require proper inflation, inspection, and lubrication for optimal performance.
• Keep the area around the motor clean and free of debris. Avoid pressure washing the motor area to prevent damage to electrical components.

Wiring and Sensor Checks:

• Inspect the wiring connections regularly to ensure they are secure and free from damage.
• Periodically check the pedal assist system, including sensors and wiring. The sensors are typically installed in the bottom bracket or inside the motor, and they detect your pedaling movement or force.
• If you encounter issues like inconsistent assistance or error codes, consult the manufacturer's manual or seek professional assistance.

Additional Tips:

• When storing your electric bike for extended periods, avoid extreme temperatures as they can impact the battery life.
• Consider adding accessories such as a battery bag to protect and transport your battery, or a display unit to monitor your speed, battery life, and assist mode.
• Adjust the electric assist settings to optimize assistance levels, sensor sensitivity, top speed, and system range according to your preferences and terrain.

By following these maintenance tips, you can ensure a smooth, safe, and enjoyable riding experience with your electric-assisted bike.

Laws and safety

While adding an electric assist to your bike can be a great way to get the benefits of increased speed and reduced effort, it's important to be aware of the laws and safety considerations that apply to these modified vehicles.

Laws

The laws governing electric-assisted bicycles vary depending on your location. In the United States, for example, federal law restricts the speed of electric-assisted bicycles to 20 mph and mandates that they have a motor of less than 750 watts (under 49cc for gas). However, individual states may have their own regulations. For instance, in Arizona, electric bicycles are not subject to the same requirements as automobiles, motorcycles, or mopeds regarding certificates of title, registration, vehicle license tax, driver's licenses, or vehicle insurance. On the other hand, Minnesota considers electric-assisted bicycles to be the same as traditional bicycles, granting them the same rights and responsibilities as car drivers, except for certain restrictions.

Safety

When it comes to safety, there are several precautions you should take. Firstly, always wear a helmet and follow traffic rules. Familiarize yourself with the bike's features, controls, and safety measures, such as adjusting the pedal assist levels and operating the brakes. Regular maintenance and care are crucial, including keeping the battery charged, checking tire pressure, and cleaning and lubricating moving parts. Additionally, be mindful of the increased speed that comes with electric assistance, as it may be easier to lose control, especially if you're riding on uneven terrain or need to avoid obstacles.

Frequently asked questions