I'm baffled and wondering if someone can advise me.
A couple of weeks back I snapped my rear hanger. I ordered 2 new ones (a brand called Pilo) a replacement and a spare, and this week got around to putting one on.
First ride on it yesterday and it snapped.
So in the evening I put the spare on, rode on it this afternoon (in a crit) and that one snapped!
I've had a quick look online to see whether whether it's Pilo that's the problem, but nothing is leaping out.
Worth mentioning that I think the original hanger breakage was due to the rear mech (di2) being faulty. It's now been replaced and today's breakage occurred with the new one on.
Also worth mentioning is that I've been using a hanger alignment tool when fitting.