As mocked by fate as I usually am when purchasing anything, I can't actually think of anything cycling related I've bought that's been an absolute dead loss (probably because everything gets researched to death beforehand). I've had problems, certainly.. but nothing that's made me want to throw the offending item in the sea. A few things that spring to mind:
- Orange Clockwork 10th Anniversary MTB: A really nice bike but I was too much of a weak nancy to use it as intended, so it just got used for flouncing around the village; collecting chips and damage as 17yr-old me lacked the sympathy I have now. Sold it a while ago; almost regret it but it was a bit small for me anyway.
- My Giant OCR - generally a positive experience although the cack, pitifully short seatpost shim caused its early death through fatigue-cracking of the frame. Also, the bars had reach and drop like Pat Butcher's earrings - something like 120mm and 160mm respectively - no wonder I always had a neck-and-headache the night after a ride!
- My Boardman Team Carbon - Generally an excellent bike IME, although the brakes were shocking out of the box and I live in fear of it's hateful PF30 BB creaking or CFRP steerer tube failing catastrophically after reading a few horror stories on the net..
- Specialised Sirrus - Bought used as a runaround but I never really gelled with the flat bars, while the old cack tyres punctured on every other ride. Sold it to a mate who's put a bit of time into it and uses it frequently.. in retrospect I should probably have done the same..