Originally Posted by WNCGoater

First, change your shift and brake cables. LBS suggests every year but if you think that's overkill (and in my opinion, more dependant on miles ridden than arbitrary time) at least don't go years until they gum up or break.
Why do you say that, you ask?
I broke my rear shift cable last weekend. It broke off inside the shifter. So I'm 15 miles from the truck with one gear. Well two gears actually with two rings up front but not a lot of down hills so essentially only one.
Three miles from the truck the chain comes off because it's loose without cable tension and being on the smallest cog, and all that jazz. The chain tangled in the rear and well the result was:
Snapped in half rear derailleur.
Front derailleur sheared off (riveted onto tube)
Derailleur hanger bent and threads boogered up when derailleur snapped.
Chain wrapped up and jammed in and behind cassette.
Rear wheel jerked out of skewer locks and warped
Of course, broken shift cable
Thankfully I was grinding uphill at slow speed and got stopped.
Unknown at this time if any micro cracks in carbon, but multiple LBS didn't want to rivet the front derailleur back on. They all hemmed and hawed and decided they "couldn't rivet it back correctly. It's 4 rivets & pretty simple. I get it though, fear of liability and such considering it's a 10 yo carbon frame. I DID rivet it back on and everything sounds, feels and appears solid.

Don't do like me, Keep up your maintenance guys.