My Rad 5 controller went out Nov 21st.  Rad City told me new controllers would be in "at the end of January." So on Jan 31st, I email them and ask where my controller is.  Response:  Not in yet, supply chain issues.  So I ask for an estimated date.  Response:  We don't know when we might get them.  Result:  I have a Rad bike that's been dead for two and a half months, and Rad City can't even tell me when (or if) I might someday get a replacement part.  I bought two identical Rad bikes (for me and the wife), and the controllers on BOTH bikes have failed.  Rad city is selling bikes with a controller they know is coming defective from their supplier, and they don't fix the problem, don't provide replacement parts.  I would advise anyone considering buying Rad to carefully research their long standing and continuing problem with defective controllers, before spending a lot of money for something that might better serve as a boat anchor.

I found this msg saying some controllers compatible with a RadCity 5 might be available, but can't find any link or source.  Maybe it's just because I'm unfamiliar with the forum or how to use it.  But if anyone could give me a source of where to buy a controller campatible with a Rad City 5, could you please email me the info at:  davec4567@gmail.com
I would sincerely appreciate any help anyone could give me.  I can't get Rad City to provide it.  My bike is nothing but a big paperweight until I can find a controller!