Really ? Back in the 80's a couple of young locals came to me to build the bottom ends of their two 450 engines - and do a good head too.Now, if that was a R/T model, I'd be seriously tempted!
They'd tracked down a suitable cam and it ran on alky with a 40mm Dellorto.Locally made c/r 2nd gear and dry clutch.
They'd started racing a 450 R/T - but it had finished up thrown over a spectator bank at Levels circuit. Spectacular I was told.
So they built up a Mk3 desmo chassis and engine. PM front caliper on a 320mm disc so it stopped as well as it went.
BEARS F2 champion 2 years running here. Then they took it to Oran Park - the Aussie post classic champs. Runner up to Albert Tenheppe's CB750.
Ultimately the inevitable happened and both sets of cases cracked around the mains. As they do when you get that much HP out of them. The cases went to Oz for one of the top Ducati guys - one of Bramich's mates - to make and fit steel inserts for the mains. Took about 2 years and by that time they'd moved on to other bikes.
Anyway - the point - the R/T handles like shit compared to the road frames.