It is the Toba Edwin I'm talking about, their only other e-bike is the Toba Edison. I'm short at 5'1" and this bicycle was perfect for me. Thanks for reassuring me that it has nothing to do with Bion-X. I'm quite happy with Bion-X actually - it has been performing very well.

Unfortunately, I cannot transfer the Bion-x system to my older bike, because the wheel is of different size and it would be too rear heavy for a bike that's not a step-through or low entry like the Edwin.

I live in Sherbrooke and the bike shop is sports4saisons.com

I offered to go to Levis, QC to get this problem solved. Getting the bike replaced would be ideal, but I'm not getting much help from the company (Cycle Lambert) which makes me wonder if every other Toba bicycle has this same issue. I was hoping I just got a dud that needed a replacement, instead of hearing "well, you're just going to have to avoid using the 1x8, 2x8 and 3x8 gears".

I need to act fast - I purchased it July this year and it comes with only 1 year warranty.

I could take a picture of the part (rivet) the salesperson was pointing at, while explaining the problem to my husband, if you'd like to take a look.