Mine would be all original if they had put better components on it
Changed the handle bars from steel to Alloy this weekend - Half the weight! one of the first bikes I know to have STI...which died earlier on this year...and the biopace were shot...and I think it looks so much better with a black crank
Front brakes are compag, not the cheap plastic 300LX it came with, rims (well you know that story from above
Seat post is cheap, so that's finally being replaced, the sadle fell apart after a close call with a tarmac hill, one pedal snapped off, so that was replaced, but I've now replaced them again with spds...oh and I'm on my thrid BB.
So apart from the handlebars, grips, front brakes, rims, BB, pedals, cranks, rapidfire levers, chairings, chain, cassette, sadle, tyres and soon the seat post it's 100 % original
1990 Kona Fire Mountain, when I can lift it!
1994 ish Marin Pine Mountain - slicked up commuter
1994 Kona Kula...nice