I have a 1986 Trek 400 Elance. This would have been Trek's 2nd from the bottom frame.

This bike has a 531 main frame with Tange CrMo fork and stays. It's also a beautiful bike- great glorious, deep paint, tasteful decals, wonderful lines and well designed with angles and appointments.

I decided to build it with components that are befitting a frame of that quality; it came with mid level Shimano Z series stuff- so I replaced the braking system with 6400 600/Ultegra levers and calipers (dual pivot in the front, single pivot in the rear). Shifting is Suntour Command shifters pulling XC Pro in the front, XC Comp in the rear- a Sugino SP-KC seatpost, Avocet Touring II saddle, Avocet triple crankset with RINO drilled rings and a Campagnolo granny. The wheels are the wheels from my 85 Trek 720- Matrix Safari rims with a Maillard 700 front hub and replaced the rear hub with a Maillard 600 sealed bearing hub.
I get a somewhat perverse kick having top of the line and second from top of the line parts on a 2nd from the bottom of the line frame!