FWIW, the hanger broke the day after he got the bike from the shop after only 25 miles of riding.
Means absolutely nothing.
Could be coincidence, maybe it's not. No way to prove either.
Originally Posted by
Metaluna
From everything I've ever read about aluminum, it does not like to be bent (i.e. no fatigue limit). Bending it to the point of permanent deformation significantly weakens it, even if it doesn't show cracks right away. Then it gets doubly weakened by bending it back to straighten it. Seems to me the LBS should have at least recognized and advised him of the risks of riding with a damaged component in that area of the bike. Instead, they tried to fix it rather than recommending replacement, weakening it further and making it more likely to fail, which it did. So now, IMHO, they have assumed at least some responsibility for the damage resulting from a faulty repair.
Joke.