AMP Research B3 F3 Full Suspension Mountain Bike Frame Fork Frameset

Thank you for your interest in this excellent vintage mountain bike frameset. There is a deep scrape along the non-drive side of the seat tube just behind the junction with the top tube. A seatpost still smoothly inserts. There are other paint chips, surface and scratches. The shocks move smoothly without a record of service to the dampers. The Shimano LX headset and front derailleur are in fair condition. The derailleur features a lever that converts it from top pull to bottom pull. One of the fork brake posts sheared. It is included to help to identify the threads for a replacement.
Measurements:
Top tube center to center actual: 22.5”
Seat tube center of BB to collar: 21.5”
Head tube: 118mm x 1-1/8” Threaded steerer