About a week ago I noticed my headlight and tail light had stopped working but the bike operated fine otherwise. After checking all the connectors and reading about similar problems on other owners' Radrover 6+ I contacted the Rad support people, they sent me a new controller under warranty which arrived today. When I removed the black plastic front cable cover on the front of the downtube I noticed that one of the cables (the thickest one) had a flat and chafed spot due to being pinched by the external cable cover. It looked dodgy to me, but I installed the new controller and hoped for the best.

When I had all connectors hooked up again I plugged in the battery but now the bike doesn't work at all! I think that by manipulating the damaged cable to examine it and take pictures, I must have broken one of the tiny wires inside the damaged section of the cable. When I turn the bike on now, the main display just glows dimly for an instant, then goes dark again. I reported all this to Rad support, and they're sending me a new wiring harness under warranty.

I'll report back here when I've installed the new harness, but meanwhile I'd suggest that owners with this bike carefully examine the cables all over the bike for similar pinching or chafing problems