Common eBike problems and solutions

Hey everyone!

I'm thinking about upgrading my e-bike soon – currently rocking a hardtail eMTB for my daily commute and weekend trail rides, probably 50 miles a week. Before I dive into new models, I wanted to tap into the collective wisdom here. What are some of the most common problems you've encountered with your e-bikes, especially those related to the electrical components like batteries or motors, and what solutions or preventative measures have you found effective? I'm trying to figure out what to look out for in terms of reliability when making my next purchase. Cheers!