Well, as I can remember it started out with;
Shimano 105 - 7 speed cassette ---- is now 8 speed
Shimano 105 brakes - still in use
Shimano 105 shifters on the tube --- now Shimano 105 STI
Shimano exage hubs - still in use
Trek rims --- now Rigida DP 18 brown
Shimano RX 100 52 -42 crank --- now Shimano RX 100 52 - 39
The color is still original!