Ok, here goes ... my first foray into BoTM! Here's my Giant-MCM-carbon-to-the-max! I'll start off with a caveat though - I don't know what year the frame is, so can't be 100% sure that it's sufficiently retro. If the consensus is that it's too recent then I'll withdraw it.
It started off as 'Project Superlight' - hence the tyres! - but when the frame showed up is was some way north of the 1100-1200g weight you see quoted for Giant's current XTC - so I decided it would be a giggle to see how much plastic I could hang off it. So far I have cranks/seatpost/bar/stem/brakelevers/bottle cage. I'll try to find a set of the Ergon bar-ends in carbon, and later look out for a set of Spin, Spinergy Spox or NukeProof-hubbed wheels. Then some finishing touches like carbon effect brake shoes. I could switch the transmission to X0 but that would be gratuitous.
As it is, it's a rider - in dry conditions only with those tyres but it's a very quick, responsive machine. I daresay it'll get ripped to shreds, but I'm not that attached to it yet so the cuts won't hurt (much