Not Matrix II related - FW4 bug causes wobbles

[rich]

Good thing I could test for 2 days Bad thing the issue is not solved yet.

I tried everything like to move most weight to the front or exactly in the middle. No difference at all. Very little or hard acceleration makes also no difference. Loose or hard cranked down red shock blocks marginal 1-2km/h difference. It’s always between 44-46km/h (27.3-28.6mph)

Then I mounted a -5° E-Toxx angled riser. I can feel the different angle when steering but the speed wobbles are the same. WTF!

Here the video evidence

Wobble at speed

The last hope is that it is FW related, I could try to downgrade from 4.0 to 3.62.

I’ve read that @DavidC had some wobble problems with FW4.1. Did the wobbles behave similar to the ones shown in the video?

TRAMPA-FS SGD AWD mountainboard

I’ve experienced issues with latest VESC firmware 4.1 : repeated ABS_OVER_CURRENT faults ; wooble at 60-80%, very difficult to handle, that I’ve never had before. I had none of these problems with 3.65 firmware. I changed to ACKMANIAC 3.102 firmware. This is way better now. No fault, in spite of lower absolute max current. I also feel more power and I get more battery range. No wooble (and I didn’t change anything to springs).