I have a 2020 RagWagon (w/ the larger wheels).
For background: The bike has 3,000mi on her. I'm a pretty good mechanic and keep my bikes in good shape. It's never been wrecked and has generally been dry and kept in a climate controlled, covered environment.

A number of months ago I rode to see Bruce Springsteen. On the way back the bike started dropping power.  (apparently, baby, I wasn't born to run). Everything works as normal, but as the power kicks in, the power seems to ramp up to the expected level and then drops completely. I can even see on the display where the wattage runs up to a few hundred watts then drops to zero.  This happens at all PAS levels and is identical when using or not using the throttle. I can get power back by turning the unit off/on.  Pedaling backwards seems to work sometimes, as well as just waiting for a bit (20-30secs?), sometimes.  However, any power recovery just sees the issue repeating itself right away.

I'll keep this post strictly to solving the mechanical problems, rather than complain about recent RAD parts and service. I just really want to get this fixed and I'm all out of options, and like Air Supply said, I'm all out of love.

Here's what I have done (in the order I recall):
- General maintenance and inspecting connections and wires (issue repeats)
- Inspect crank (issue repeats)
- Unplug and isolate brake sensor cables (issue repeats)
- Replaced fuses in battery (issue repeats)
- Borrowed a RAD battery from a friend to test the battery itself (issue repeats)
- Ordered and installed a new controller from RAD (issue repeats)
- Ordered and installed a full rear wheel assembly from RAD (issue repeats)
- Ordered and installed a battery tray from RAD (issue repeats)
- Ordered and installed new wiring harness from RAD (issue repeats)
Like I said earlier - after each 'fix', the issue is EXACTLY the same. I. have not been able to tell any difference in the problem at all. It's exactly the same issue, over and over.
At this point it seems like I've replaced everything but the LCD head unit, which would seem to me to just be a 'dumb' display rather than controlling anything?
I live in Austin TX, and there are no longer dealers on service centers locally.

Anyone have advice? I really do love this bike and want to get it running correctly again. I was able to return the wheel/motor assembly to RAD, but other than that...I've paid to replace damn near the whole damn bike and it still isn't running.

Help me Obi-Wan...you're my only hope.

I have a 2019/2020 RadWagon. It has 26" wheels. 3,000mi, well maintained, no major issues, water damage, extreme temps etc.



The bike works fine, powers up with no error codes, but loses power after about 10secs of PAS or throttle at any level. Goes up to proper wattage, then just drops to zero. It seems to fix itself if you power the bike on/off or pedal for a while, but then loses power after 10secs. The LCD display does not indicate anything abnormal. This issue can be identically repeated over and over.



Here's what I've done (the same EXACT issue continues)
- Does not seem to be a bad connection/wire since it is easy to repeat

- Unplugged, replugged brake sensors, but issue repeats

- Check voltage coming from battery and replaced both fuses

- Replaced the Controller with a NEW one from RAD. (Actually two as they sent me the wrong one first)

- Replaced the entire motor/wheel assembly with a NEW one from RAD

- Borrowed a friend's battery to check if it is something with the battery/battery controls (same problem)



I'm stumped. I guess the wiring harness or the head unit LCD could be the only other things I could possibly replace? At this point, I've got enough stuff to build up a new bike!?!? I can return stuff I don't need to RAD, but have not been able to isolate (and fix) the issue.

Help??