Upgrade Kit V2.1 - for RR6+

(22 reviews)
Current Stock:
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Click here for installation instructions.

UPDATE - Upgrade kits now have full throttle in pedal assist settings 1-5 and an updated graphical interface.

The Upgrade kit includes a new motor controller and new color display.  The combination allows you to finally unleash the full potential of the stock motor and battery.

35a sinewave controller and New Color display.

Plug and play for the RadRover 6+ Step over and Step Through


How much power will this add?

We have dyno tested the stock RadRover 6+ before and after installing this kit.  Peak performance at the rear wheel was 716 watts and 27.3nm of torque on the stock bike.  With the upgrade kit installed we doubled power to 1,503 watts, and increased torque over 50nm!


THIS IS NOT COMPATIBLE WITH OTHER RADPOWER MODELS!  Please see our other upgrade kit for other bikes.

Has not yet been tested with the "premium" headlight from Radpower and is not recommended at this time.

Compatible with both 48v and 52 batteries.  (NOT recommended for 60v)

*The Upgrade Kit is created for specific models of Rad bikes, and that name is used for part compatibility or identification only. We are not affiliated with that company and this item is an aftermarket part.


  • 3
    Still some issues that need to be...

    Posted by Randy Stevens on Aug 29th 2023

    Still some issues that need to be resolved

  • 5
    Excellent upgrade...

    Posted by Marek Czesnik on Aug 25th 2023

    The upgrade kit works very well. Lot more power. Kit is easy to install. Video on YouTube explains the installation very well. I had to contact the supplier with respect to couple of settings in advanced menu. Response was prompt and productive, and issue was addressed within few hour. Very impressive. I recommend this kit. Enjoy!!

  • 5
    Install upgraded...

    Posted by Steve Settle on Aug 22nd 2023

    I have not had a chance to install it yet. I went out of town probably the day after that it came so I will try to get it installed in the next week or two but hopefully it will go well thank you.

  • 1
    RR6+ Controller Upgrade

    Posted by Hans Kruck - Replied to by Area 13 on Aug 16th 2023

    Very, very pissed off. Yes, it works, somewhat, not nearly what was expected. Speedometer is off by a guessed factor of 5, shows 4 MPH when it should be showing 20. PAS engagement sucks. No Wattmeter sucks even more. This thing is not working as advertised. HK Hans - I'll have someone reach out to you via email. This sounds like we need to provide some settings for you to correct the speed and pedal assist. I don't see that you've emailed us, so please don't hesitate to reach out if you have issues with our products. We always respond.