This thread with a later model Cirrus shows a sticker which yours doesn't have View attachment 684320Alcoa Japan, so the tubing on that one came from Japan
'94, erm '92..., well '93 Rocky Mountain Cirrus rebuild
Update May. 2, 2021: new specs/pictures p. 5-6 Dear RBers, My first rebuild. For the impatient, the before/after pictures, with technical data below. Frame: Rocky Mountain Cirrus, 21.5" size Fork: Rock Shox Mag 21, 1 1/8" (200mm) threaded steerer/crown, 60mm "long travel" kit Headset...www.retrobike.co.uk
This sticker appear on the 91' frames. Not on 90' Synlos or mine one...