Forks are easy to ID....

Do they have a damping adjustment dial on the top of one of the fork legs (red dial I think)?

If so, they are Mag 20s (early version - 48mm travel) or 21s (later version with 60mm and negative springs).

If not, they are Mag 30s (early version) or 10s (later version with 60mm and negative springs). These were an OEM version of the Mag 20/21 that did not have damping adjustment dial or facility).

Also, be aware that some of these forks we recalled (contact Rockshox with the serial number for more details):

http://www.recall-warnings.com/cpsc-...-95-95136.html

Enduro makes seals for them, but a full rebuild would also need bushings (only from Rockshox):

http://www.enduroforkseals.com/id22.html

They were the best fork available at the time (so good infact that Marzocchi unashamably copied them with their STAR-fork).

They are very light (super light by todays standards at about 3.2lbs) but the compromise is that they can be very flexible (ie don't track as straight as newer forks). This is why most modern forks weigh more (more meat = less flex).

As for the bike, not entirely sure.

From the rear drop out, it is NOT a GT from the time of the forks manufacture 91/92 - the only GT model made from Aluminium then was the Zaskar. It's later.

The rear dropout changed in 1993. So it might be a later than 93 Zaskar.

By 1997, there were several AL models in the range, and it could be a paint stripped one of them. These used different tubing (7000 series rather than the Zaskar's 6000 series, and were made in Asia), and will not be as light or strong.

If its a Zaskar, it's a great frame, if it's one of the others, it's a good frame!

Send the serial number to GT.