Hi,

On and off for the past 3 months, I’ve been riding my bike to work. This morning, my left crank arm failed on my relatively new bike (I bought it the first week of August). A similar thing happened to my old bike’¦but I didn’t think much of it since it was over 10 years old’ I’m starting to wonder if my riding style is unduly Any help will be apprecited.

I didn’t find the right solution from the Internet.

References:
https://arstechnica.com/civis/viewtopic.php?t=481387
POS Solution Video

Thank you.