BionX Retrofit Kits

Choose the kit that suits your needs and riding style to transform the bike you currently own or a new bike--into a state of the art electric bicycle! Contact us about the suitability of any bike for a BionX and our recommendations. You'll value our installation expertise and impeccable customer service!
We offer free standard installation when you purchase the bike from us. Surcharges for specialty installations vary. 

NEW FOR 2015: Powerful D-series kits DV and DX--stay tuned for more, or call today to order for late November.

S350 DL (D = down-tube) and RL (R = rear rack) with 48V 6.6Ah Battery
This model boasts a long-range (up to 50 miles), more efficient, lighter-weight battery. Showing how far the industry has come, the Lithium-ion 48V battery on this system provides over twice the amount of energy contained in the 24V NiMH battery, the battery first featured when electric bikes appeared on the scene--commercialized by BionX in 2003.
Installs on the front down tube using the water bottle mounts. DL = black components with low-profile battery. RL system, in black only, installs with the custom BionX rear rack as below right. Additional $100 for rear rack.

S350 DX (D = down-tube) and RX (R = rear rack) with 48V 8.8Ah Battery
This kit delivers more power, more quickly, with its 48 volt battery and super-lightweight motor. All S350 X available in silver only. 
The S350 kit is available in both standard (DX) and rear rack (RX). Additional $100 for rear rack; example pictured below.

Rear Rack Model PL350 HT RR M
This PL350 motor has been the workhorse of the BionX line since its release in 2009 with high-torque silent Sin-drive motor great for hill-climbing. Still a good range (37 mi!) compared to other e-bike kits, and always with BionX quality, efficiency and regeneration. This kit is available only with the BionX custom rear rack pictured at lower right in black or silver components (no down-tube version). Includes a built-in rear safety light and port for optional front light or accessory wiring.

G2 Console
The G2 (pictured here) console is ergonomic and removable--providing a separate toggle-on throttle and power control for mounting next to either left or right hand grip. And a comprehensive multi-functional easy-to-read display also adaptable to left or right hand use.

Choose a BionX for the bike that suits your individual needs!

Models S350 DX / RX S350 DT/DL S350 RL PL350 HT RR M
Battery LiMn 48V
8.8 Ah
LiMn 37V
LiMn 37V
LiMn 37V

Battery Wt. 7.9 lbs
9 lbs
9 lbs
6 lbs
Motor 350 Watt
350 Watt
350 Watt
350 Watt
Motor Wt. 7.7 lbs
9 lbs
9 lbs 9 lbs
423/750+ W 355/700 W
355/700 W
355/700 W
9 / 40 Nm
9 / 40 Nm
9 / 40 Nm
9 / 40 Nm
Total system Wt. 16.1 lbs / 18.9 lbs.
19.4 lbs
22.5 lbs (inc. rack)
20.5 lbs (inc. rack)
Price $2,099 / $2,199 $1,899 $1,999 $1,499

  • Wheel sizes available: 700c, 26", 24", 20"
  • Standard drop-out: 135mm
  • Compatible with a standard shifting system counting up to 27 speeds with a 9-speed and smaller rear sprocket.
  • A strain gauge responds to your effort, boosting your pedal power from 35%, 75%, 150%, or 300%, in levels 1 - 4
  • Read BionX Q&A
  • Shipping $50 on BionX kits! 
  • Visit the BionX Website

These are the standard BionX kits. Please contact us if you are interested in the 250W kits or for ordering components of the kit “a la carte” individually or as a custom kit. Or for questions regarding other alternative battery installation options. We typically charge a handling fee for parts or service for kits purchased from other dealers.

BionX Limited Warranty: All components are covered against manufacturing defect for a period of two (2) years from date of purchasing. 

We like talking to you
about electric bikes!


We look forward to seeing you at our showroom
 in North Seattle:

Fall Hours
Thursday: 12 Noon - 5 PM
Fri & Sat: 10 AM – 5 PM
Sunday: 11 AM – 5 PM
Monday 12 Noon - 5 PM
...and by Appointment!


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