Looks like yours has lost it's original rear mech, shifters/levers, and chainrings. Only the cheapo shifters/levers from much later look out of place though.
This is an original one except for the stem/handlebars in the first pic:http://www.flickr.com/photos/79568674@N04/7120842475/http://www.flickr.com/photos/79568674@N04/6974760816/
Thanks for that reply, I'm trying to find out about originality of mine, cant find an escaper brochure anywhere
My shifters are diff from original then? I dunno how to tell, tbh the bike rides great, its also very quick too without hardly an any effort, I can launch it off the mark to 30mph nealry as quick as my car, ive tried it the other day,compared to a few other bikes I have access to even much newer ones my bikes slaughters them completely, I can do a 20 mile cross country blast on this and not really feel much effort yet on other i can be aching all over on the same route!!!
What was the original gearing set up and the 3 chain ring ratios? Mines shimano deore LX, it works great for me and shifts miles faster than my stonebreaker which is a good bikes but feels cumbersome to the escape, I'm more confident throwing the escape around than I am on the stonebreaker but they are 2 completely diff types of bikes