the shimano e8000 motor is, after all, one of the oldest emtb motors so it is quite unupdated and the technology has progressed quite a lot on motors since then.
some tips regarding your problem is to clean the connector where you plug in the battery and check that the battery is firmly...
new rims. straightened my old rims and changed the spokes but after a few laps they started to wobble again and the spokes came loose so they were completely done.
The new rims is DT swiss 1700 spline 30, had theme before and I lovet them.
I had cushcore pro both front and back at first. but after a while I took the inserts out of the front tire as I thought it felt like the bike was understeering.
It defently had a positiv effect on rockgardens to have a insert front but for me it doest worked out.
more and more manufacturers are starting to offer just the frame for purchase. demand is likely to be high as several manufacturers offer this option.
Here are som manufactures that is offering emtb frame only option .
Trek
pole
Scott
commencal
pyga
And some chinese noname frames.
it's a shame that orbea didn't choose a removable battery and the mullet because then it could have been the emtb of the year 2024. I think many people opt out of orbea now just for that reason.
Nothing can beat the strive ON right now . Good price and components , mullet and a battey you can...