yeah right, so a budget model like the 748 "economico"It's only the aluminum swingarm that cracks.
In the US the 900 SS/CR was essentially a 750SS (coffin masters, steel swingarm, 4.5" rear wheel, non-adjustable fork) with a 900 motor in it. The swingarm is interchangable between the models, many steel swingarms were traded out for aluminum ones.
What does the CR stand for? the OP's new purchase is certainly nice, it will be a nimble handler with the 4.5" wheel but yeah, the 5.5" with a 180 does look meaner back there.