Not a road frame failure, but a 1986 Trek 830 mtn. bike frame- it broke through the head tube while climbing a hill- "Tink!" (putting on the bar). This bike saw the vast majority of its use as a commuter, but a lot of use that way- many, many years as a college student commuting, in all weather (5-100 degrees F). It did see some trail riding, and was crashed a few times, but never run into anything other than the ground.

When I broke this frame a friend told me about her boyfriend having the same problem with his Trek roadie- same era (late 80's), same break (headtube). Does anyone else know of this problem w/Treks from that era?. Trek, btw, was very cool about the problem- no questions asked, paid for the build up of a new, upgraded frame, plus any parts required in the new buildup (BB,crank,stem, handlebars & grips, brakes, cables, front der., seatpost). And I got a newly rebuilt bike back in a very short time (good shop in Ann Arbor, Michigan).