Cable block broke loose
. . . on my Giant T-Mobile carbon frame. For anyone who isn't familiar with the term (I wasn't), it is a little "eyelet" type thing that, on my old Schwinn, is brazed on, and this one is located underneath the chainstay. It holds stops the cable housing when you shift, so that shifting produces the proper cable action. Without it, you don't have proper tension on the cable, and the RD will move to the smallest cog and stay there.
Anyhow, on my Giant, this little piece is fastened using rivets. They both snapped off. Apparently, Giant is aware of the problem, and it must be covered for life, as they requested the frame be sent in for the repair at no charge (I paid shipping).
Anyone else experience this problem? I wonder if the repair will last. It's the sort of thing I don't think would ever happen to an older style steel or aluminum bike. One of the trade-offs of carbon, I guess.
If Giant is willing to warranty the frame, they must have a fix they are confident in. This type of failure doesn't seem to be a routine problem with carbon frames in general as this is the first systematic (non-accident related) one I've heard of.