BionX RC3 Handlebar Controller with Integrated Throttle, Part 01-5590 — Multi-Button e-Bike Remote for Assist Levels, Lights & Walk, For Late-Model BionX G2 Hub-Motor Systems (works stand-alone or with DS3 display)

BionX RC3 Handlebar Controller with Integrated Throttle, Part 01-5590 — Multi-Button e-Bike Remote for Assist Levels, Lights & Walk, For Late-Model BionX G2 Hub-Motor Systems (works stand-alone or with DS3 display)

Condition: New, unused. Includes factory cable/inline filter and tag. No other accessories included.

The BionX RC3 is the compact, thumb-operated handlebar controller used on late-model BionX G2 systems. It combines assist up/down, regen/brake level, walk/“Z” mode, and headlight control in one low-profile ring that fits next to your grip. An integrated throttle is built into the pad cluster, so you can dial pedal-assist or call for power without moving your hand. RC3 can run stand-alone (basic LED/battery/assist indication on the ring) or plug into a DS3 handlebar display for a larger screen. The short pigtail terminates in the BionX harness connector for quick replacement or kit upgrades.

Image set: /mnt/data/BionX-RC3-Controller-with-Throttle-01-5590_5.webp, /mnt/data/BionX-RC3-Controller-with-Throttle-01-5590_1.webp

Features

• Integrated throttle + remote: one compact ring handles assist +/-, regen, walk/“Z”, and lights.
• Stand-alone or paired: operates solo or with the DS3 display (if your bike is equipped).
• Ergonomic, low-reach buttons for gloved use; tactile +/- paddles.
• LED status window on the ring (battery/assist indicator; model-dependent).
• Inline ferrite/filter on the lead for signal integrity.
• Standard 22.2 mm handlebar position next to the grip (fits most flat/MTB bars).
• Plug-and-play with compatible BionX harnesses—no re-pinning required.

Applications / Where It’s Used (plain language)

• Replacement controller for BionX-equipped e-bikes where the original RC3 is damaged or intermittent.
• Upgrading older bar remotes on G2 kits to add compact throttle/lighting control.
• Service builds in shops maintaining retired BionX fleets.

Compatibility (what it works with)

• BionX G2 hub-motor systems that support RC3 control, commonly found on:
  • D-Series kits (e.g., D-500 family)
  • P/S-Series G2 kits (e.g., P-350, S-350 variants)
• Can be paired with the BionX DS3 handlebar display (optional) for full graphics.
• Not for early G1 consoles or non-BionX systems.

Always match to your bike’s voltage/platform (36V or 48V G2) and original connector/harness.

Cross-Referenced / Related BionX Parts

• RC3 — this controller with integrated throttle (01-5590).
• DS3 — separate handlebar display that can be used with RC3.
• BionX wiring harnesses — main loom that the RC3 plugs into (bike-specific).
• BionX brake levers / brake sensors — for regen/brake cutoff to complement RC3 control.

Comparable / Substitute Items

• BionX G2 bar remotes from similar production runs (different part codes, same form factor).
• Earlier console-style controllers (non-RC3) used on some G2 kits — functionally similar but larger and without the compact ring layout. (Not plug-compatible with G1.)

In Larger Systems / How It’s Used

Mount the RC3 on the left or right side next to the grip, route the cable along the bar, and connect to the BionX harness. Power the bike; use + / – to set assist, press Z/walk for low-speed walk-assist, tap light to toggle your BionX-controlled headlight (if fitted), and use the integrated throttle for momentary power. When paired with DS3, all selections mirror to the display.

Trademarks

BionX and all model names referenced are trademarks of their respective owners. Names are used strictly for identification and compatibility purposes only.

Related

bionx rc3 controller 01-5590; bionx throttle ring remote; ds3 compatible handlebar control; g2 hub motor controller; e-bike assist up down buttons; z mode walk assist controller; replacement bionx remote switch; ring throttle for bionx; controller with light button; compact ebike bar remote

Common Requests:

1. “Will RC3 work with my G2 36V/48V kit and DS3 display?”
2. “What side of the bar does it mount on and what’s the bar diameter?”
3. “Is the throttle proportional and does it override assist?”
4. “Do I need any firmware updates after swapping the controller?”
5. “Can you include the mounting screw/zip-ties or a replacement DS3 display as a bundle?”

P124