trail wrote:
aravilare wrote:
Ultegra 6870 Di2 derailleur hanger Just quibbling that the hanger is not Ultegra. It's an OEM part that doesn't come from Shimano. They're usually made by the frame manufacturer or some third-party company.
And the aluminum ones are designed to break. With the theory that it protects both the frame and the derailleur. It's not that surprising that one that's about 10 years old would snap. It's one of those parts that once it has a number of years on it, you want to periodically inspect it for signs of metal fatigue and softness. For that same Cervelo, I got my replacement from Wheels Mfg. I think I probably have a spare one for my now-defunct S5, so let me know if you want me to look for it and mail it for free.
I'm on the same page that the damage *looks* pretty minor, but you might have it checked out by an expert in person before resuming riding.
Fair point on the hanger. Also reminds me of the irony of the LBS employee telling me two weeks ago that I had a slightly bent hanger and how that it sucks they're designed to break off and prone to bricking expensive wheelsets nowadays (luckily the Flo wheels are more affordable than typical).
Thank you for the offer but I snagged a replacement hanger off Amazon with free 1-day Prime shipping so if LBS thinks the carbon damage is cosmetic, this could be only a very short break from the bike.