Here Here Here, Ms Peel Combat/steel flywheel, small ports, one bigger carb out 2-1 loong megaphone, was not hurt by my expressiveness into new levels of performance, but accidental detune putting on dual 932's set rich with fast response race needles, first kick every time even on an almost freezing day, so well kicker out raced my kick and I stumbled and released WOT grip and by time I regained feet it had rev'd pass red zone and then got her second breath and slapped back so hard on the isolastic it slapped my adrenalized grip right back in my face to make me stumble again in horrified state to make 3rd attempt to shut her down after a couple seconds no tach needle seen d/t speed of its bouncing off peg, and lost my wits to finally snap throttle shut instead of holding WOT and pressing kill, so not to extra suck the piston up so hard crank ends ruined everything on both ends, but was still pretty spunky another 2000 miles with big upper and lower wind screen in winter to 110mph/5000rpm and pooped pooped out. Prior was good over 120 with this screen. Then the 1098's came out and decided Norton was not enough and jump ship. Got guts of that engine and will reproduce the combo someday to see if it really wasn't a fluke.
On point of subject line, a couple decades reports, horizontal vibes will be felt in offset cranks solid or isolastic mounted but nicer than 360 in solids. Same with adding more rubber area or harder compliance. I remind thee my tri-linked Ms Peel flat uncanny disappeared from pilot sensation and seemed impossible to upset no matter what I did or took on. So to me its silly, misinformed, academic waste of money and talent and materials to deviate from merely completing the ingenious potentially Unapproachable Norton Commando. The only advantage mystery to me is if the offset power pulses could hook up better on tire edges.
But on the other hand Norton ain't got no 15-20,000 pulses per minute to confuse the quantum interface of rubber and tarmac.
Doe's that mean you have ridden a 90 degree crank?
Geoff Collins built the welded nitrided 360 crank for big block blown Peel.
Its not his profession but deep brain infection with expensive big jigs plus cams and ignitions to suit to offset deviate crowd, all because no one but no one else yet knows what they are missing out on a full linked iso Commando with turbo jet smooth thrust and electric motor response.