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Electric Bike Retrofit Kits

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Looking for electric bike retrofit kits? Propel has you covered. We carry many different types, including hub and center drive offerings. Our retrofit motor systems include leading manufacturers including, Bionx, Bafang and more. Most of our electric bike kits are limited to 20 mph, but some do go up to 28 mph. We carry many different types listed below.

While we generally recommend complete bikes over doing a retrofit, there are some examples when modifying your exsisting bike makes more sense. If you have questions about this or if you need help figuring out what will fit your bike please contact us.

We carry electric retrofit kits from Bionx, Bafang & More. Come visit our store in Brooklyn or shop online. Or reach out if you’d like to learn more about your options.

Check out our Electric Bike Retrofit Kits Selection Below:

  • BionX-D-500-DV-Electric-Bike-Kit-Modified-File
    BionX-D-500-DV-Electric-Bike-Kit-Modified-File

    BionX D 500 DV Kit

    This top of the line BionX D 500 DV downtube mounted electric bike conversion kit focuses largely on acceleration and torque. The powerful, low-profile, sleekly designed 48v11.5Ah(555Wh) battery is ideal for narrower frames. This BionX D 500 DV's compact power supply makes for quick recharges on the go.
    $2,499.00
  • BionX-S350-RL-Electric-Bike-Kit-Modified-File
    BionX-S350-RL-Electric-Bike-Kit-Modified-File

    BionX S350 RL Kit

    This BionX S 350 RL conversion kit has a long range of up to 50 miles. The BionX S 350 RL has a rear rack system which is the ideal pair for overall commuting or general adventure. This kit is easy to install and adapts simply to most frame styles and sizes. This new and improved BionX kit weighs 4 lbs less than the previous 'L' rear rack systems.
    $1,899.00
  • p-18241-8FUN-1
    p-18241-8FUN-1

    Bafang Mid-Drive Motor 750 Watt 48 volt BBS02

    This highly efficient Bafang BBS02 electric bike mid-drive conversion kit is in a class all of its own. The 750W mid-motor kit can be installed on virtually any standard bike frame; including cargo bikes, road bikes, mountain bikes, and recumbents (with bottom brackets measuring 68mm and 73mm). The high torque BBS02 propels you up to 30mph utilizing the option of nine levels of pedal assist or the option of throttle mode. Additionally, Long Island Electric Bikes includes a one year warranty. If functionality, speed, low cost, and high power interest you, the BBS02 should be on your short list. Motor- The BBS02 electric bike kit comes standard with a 750W mid mounted geared motor with 1000Watts of peak power. This powerful motor weighs 8.5lbs, is quiet, and highly efficient. Acceleration- The BBS02 performs seamlessly and accelerates instantly. Ride up any hill with ease as the motor provides over 1000watts of peak power amplifying your pedal strokes, doing most of the work for you. Torque- The BBS02 has high starting torque and offers a peak torque of ~80 Nm, allowing excellent performance while climbing. Battery- Ride for long distances on one single charge using our recommended 48V 11.6Ah (556Wh) Li-Ion Samsung battery (not included). The battery charges in less than three hours and provides you with up to 35 miles of ride time. The battery has a lifespan of approximately 1000 cycles. Display- The 8Fun Bafang BBS02 electric bike kit can be easily mounted on your handlebars and comes equipped with a multifunctional LCD backlit display. The BBS02 display provides access to several different features giving you full control of your ride. It displays such functions as speed, odometer, assist mode, battery level, trip distance, wheel size settings, and more. With a bright LCD screen you
    $850.00
  • BionX-S350-DL-Electric-Bike-Kit-Modified-File1300x820
    BionX-S350-DL-Electric-Bike-Kit-Modified-File1300x820

    BionX S350 DL Kit

    This highly efficient BionX S350 DL long-range, down tube mounted electric bike conversion kit is portable with a compact power supply. The powerful, low-profile, sleekly designed 48v battery is ideal for narrower frames. This BionX S350 DL's compact power supply makes for quick recharges on the go.
    $1,799.00
  • Bionx-S350-RX-High-Torque-Rear-Rack-Extra-Large-Electric-Bike-Kit-Modified-Life
    Bionx-S350-RX-High-Torque-Rear-Rack-Extra-Large-Electric-Bike-Kit-Modified-Life

    Bionx S350 RX High Torque Rear Rack XL Kit

    If you’re looking to give your ride a huge boost of power with the largest battery of all the Bionx kits, the Bionx S350 RX Extra Large Battery electric bike kit is the way to go.  The most powerful rear rack electric bike motor kit in the collection is the BionX S350 RX High Torque Extra Large electric bike conversion kit.
    $2,199.00
  • BionX-PL-350HT-Rear-Rack-Medium-Electric-Bike-Kit-Modified-File1
    BionX-PL-350HT-Rear-Rack-Medium-Electric-Bike-Kit-Modified-File1

    BionX PL 350HT Rear Rack Medium Kit

    The BionX PL 350HT RR M electric bike kit is an affordable and powerful, entry-level BionX rear rack conversion kit. This kit is part of the Eco Series. The BionX PL 350HT RR M is a must for the urban commuter and recreational adventurer.
    $1,499.00
  • s350DX
    s350DX

    BionX S350 DX Kit

    This top-of-the-line down tube mounted BionX S350 DX electric bike conversion kit is one the best on the market. The BionX S350 DX is a lightweight system which supplies up to 20% more range than other models. Offering more range allows you to travel more than 65 miles, (yup, 65 miles!) on a single battery charge!
    $2,099.00