Am I particularly unlucky?

[Afren]

What was wrong with the crank arms?

You're not unlucky, I would consider what you've had to do to be on the high side of what I would consider normal.

Bulls ebikes have a known design fault when it comes to the crank arms that they come with. I first heard about it on this forum. If you go to Bulls forum you'll see plenty of posts regarding the issue.

 

[33red]

Your motor is not knowned as reliable.
Maybe loosing weight is a good idea?
Maybe learning to ride?

 

[FlatSix911]

Your motor is not knowned as reliable.
Maybe loosing weight is a good idea?
Maybe learning to ride?

Maybe learning to write and spell?