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Old 23-03-2021, 09:38 AM   #12
Mr Gazza
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Join Date: May 2013
Location: Norwich
Bike: M900sie
Posts: 5,806
A couple of years ago I tried to get my head round how the hoop suspension and rocker all worked together, it was something Utopia, Capo and I were churning over.
I ended up making a full size model out of MDF with the relative pivot points accurately set out. I made the shock telescopic and also the hoop, so that I could try and fathom what happened when the hoop was lengthened with ride height extenders.
All I would say is that there is a hell of a lot going on there geometrically without even factoring the dynamic aspect of it all and factors like sag and preload.
I know the geometry is different from the hoop on the rod system, but the principle is the same. Studying subtle changes on the model did my head in and all I would say is that in my opinion the notion of replacing a 305 shock with a 330 one is utterly doomed. That's just my opinion, but I just wouldn't go there.

If you don't believe me try making a model, or just plotting it out on paper.

Utopia still has the model, he might oblige you with a photo?
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