eBike hubs....seen this before?

Thank you for the upcoming nightmares.

I will say bolts loosening on ebikes is a pain, I need to toque check my rear end after every ride, between the pivot bolts and the rear axle you need to over torque everything to make through a big ride.

loose brake bolts with a 60lb. bike, what could go wrong?

I'm going to say the bolts were loose and once 4 of them were out the 2 remaining tabs had o chance.

Going by the way those CPS washers have been installed (under the mount instead of the calliper) I don't have a lot of faith that anything was mounted correctly

Poor bike maintenance sucks when it happens to you.

I am surprised you didn't end up with your teeth rubbing on the front tire. Luckily the rear wheel didn't lock up on you. This is just not paying attention to normal maintenance. The bolts had to have been loose as shit for a while to have this happen. Maybe that was the rattling sound you were hearing for the past 3 rides. Has nothing to do with E-bike hubs. Has to do with the e-bike rider.

Just switch to rim brakes and call it good.

Brooklyn Machine Works v-brakes would do the trick.

No brakes and a fixie sukka!

Can think of a lot of things to say, but I gues Sram already did that to this pro rider calling them out..