Yeah, the axle nut was made from pot metal or something similar. The threads were stripping from the torque. The other one was about to come off, too.

The non-electric Marin Kentwood is 33# equipped with fenders, rack, and lights, computer, etc. I just got a new 7-speed sprocket set on the back for $20 which has a VERY big large sprocket to make the Seattle hills much more rideable with my old tired legs, which actually got pretty strong with the Gepida.

So, my foray into electric-assist bikes was brief but a lot of fun. I will likely pursue one again as the battery and bike weights reduce and the batteru range increases.