2nd owner, purchased in 1989. Was built-up by the previous owner for more durability on long group rides. The upgrades by the previous owner included: Bullseye pulleys, Matrix Iso-C Aero rims laced with heavier gauge stainless spokes and Matrix hubs. Build date was in 11/87, and the exact color and component scheme is on pages 12-14 of the 1988 catalog. Very strong, light, and responsive. It had the following from the factory: full Shimano 105 group, including frame decals, brakes...