Nice bike! Seems like it has the same stem as mine - was wondering if you had any issues pulling the stem off the damn forks... Not sure if it's relevant but would you have any advice on getting it off. (So I can work on the headset either new bearings or replacement.)
Some photos of the aluminium stopper/bolt now rattling around between base of the Orange stem and the bottom of the steerer tube.http://www.flickr.com/photos/nevermindt
Again not sure if this is an area of your expertise but am guessing it might be someones:
1) Guessing my bike would have had a Deore LX rear derailleur. Anyway know this for sure?
2) The front brakes are V Brakes which means they can't be original parts as I think these kicked off in about 1996. The rear break is an EXAGE mountain caliper brake.
3) I bought this bike along with two others and a load of bent wheels and old parts for £20 locally. I suspect the Araya silver aluminium rims with quick release are the most likely original wheelset.
It seems that the only stuff I can find online about the bike indicates Suntour components but then some people mention Euro spec was Shimano and I think a lot of the LX parts on the bike were original. Sorry to bump your thread!