BionX D500 Electric Conversion Kit

BionX D500 Electric Conversion Kit


A powerful hub-motor conversion kit from BionX that works great on bikes with 26" or larger rear wheels. 

Features a lightweight and heat-dissipating composite motor shell and a large diameter motor for high torque and fast acceleration. 

Add To Cart

Visit our Seattle location to get to know this bike in person. Our friendly staff will help you learn everything you need to know to make an educated investment in your next family bike.


  • 500 W system is powerful and quiet - Climb hills and cruise swiftly on the flats with this innovative electric bike conversion kit from BionX.
  • Extend your range with battery options - Family bikes often require a larger battery to handle the heavier loads -  the P350 system now can be ordered with a 555 Wh li-ion battery.
  • Regeneration mode engages when braking - BionX regeneration mode will recharge the battery automatically when engaging the brakes, or can also be manually engaged via the console to slow a long descent and boost your battery level.
  • Featuring the new G3 color console - The G3 console includes a full color display that's easy to customize and understand.
  • Throttle button available once moving- Use the throttle to boost your power once moving - you cannot throttle from a stop to keep you safe from inadvertent acceleration.
  • Change settings on the fly - Advanced users rejoice, BionX enables you to change many settings on the console to suit your riding style.


BionX is a Canadian company that specializes in aftermarket electric assist conversion systems for bicycles.  We here at G&O have been working with BionX since our very first days as a bike shop.  BionX has shown, over time, good reliability and performance, even with the increased demands of kid-carrying cargo bikes on Seattle streets. 

We can special order just about any BionX kit available, but we specialize in two kids - the P350 and D500 systems.  The D500  is a kit well suited for bikes with 26" rear wheels and larger. Because of the size of the D500 motor, there are not wheel size options smaller than 26".

We can quickly assess your bike's compatibility with a BionX system in our store and help you understand the costs associated with upgrading your conventional bike to an electric bike.


BionX offers an industry-leading 3 year limited warranty when you register your product with BionX after purchase.