Re:
Its a 3 series frame and forks dating back to the early nineties,which has been extensively (and nicely) modernised.Decals are typical modern off Ebay or similar and very few of the original parts remain.If you really want to find out the age then the frame number will tell you,however a re-paint tends to cover the little dots which form the number.Other than that if you measure the thickness of the part of the frame to which the gear hanger bolts,most 1990/91 frames are 4.75mm thick,1992 frames onwards are 6.4 mm thick or thereabouts.