Took this 1989 Trek 1400 out of storage for the past 20 years and took it for a ride. When I got back home I noticed a crack wrapping almost completely around where the bridge connects to the seatstay and a hairline crack lengthwise in the seatstay. Put a penlight to the opposite side and saw light shining through both cracks (see pics).
What was even more surprising, however, is that shining light through the bridge/seatstay joint that's NOT cracked produced the same results, as you could see a gap between the seatstay and the bridge, apparently only covered by paint.
This bike has no more than 1000 miles on it and I, a mere 140 lb. recreational rider. It has never been wrecked or abused. I do, however, have the original receipt.
1) What's going on with this frame? A product of early experimentation with aluminum? Was the bridge simply glued and then riveted? Is the frame completely shot?
2) Is it worth trying for a warranty claim?
All else failing, I'm wondering If It would be worth ordering a Nashbar road frame as a replacement...