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DSSA will move the CG forward. Gearing changes no longer changes the ride height so set-up is easier and it's cheaper to make. Ride height adjustment is actually only a problem on these since they took the rocker adjustment off. That's why I wonder if the R's will have a carbon fiber SA.
 
First WSBK and GP are 2 different series bound by different rules. For the uninformed, WSBK is based on homolgated production bikes. GP bikes are full on prototypes. A homologated WSBK bike has cost constraints. Having 2 different swingarms for a production bike is expensive in many ways (R&D, manufacturing, logistics, etc). Therefore, go with the thing you’re familiar with and that you’ve already committed investment in. It’s why you don’t see manufacturers switch engine layouts

You are missing the point, which is that you seem to be arguing that the SSSA is chosen for performance considerations and yet in GP they only focus on performance and they do not choose the SSSA.
 
DSSA will move the CG forward. Gearing changes no longer changes the ride height so set-up is easier and it's cheaper to make. Ride height adjustment is actually only a problem on these since they took the rocker adjustment off. That's why I wonder if the R's will have a carbon fiber SA.

DSSA makes perfect sense for the R as far as I am concerned. The marketing guys wouldn’t like it though as the SSSA is a differentiator.

Would they be allowed to use a carbon swingarm, given that they can’t use it for wheels?
 
They are using the DSSA in MotoGP, therefore it’s technically superior. Again, they’ve stuck to the SSSA because of a design consideration and because they tried to switch away from it previously and the market did not take kindly to it. Repetition…

It’s not technically superior when the bean counters get involved and the costs associated with the change don’t make sense.
 
DSSA makes perfect sense for the R as far as I am concerned. The marketing guys wouldn’t like it though as the SSSA is a differentiator.

Would they be allowed to use a carbon swingarm, given that they can’t use it for wheels?

Forged magnesium would work here too if the WSBK guys are whiney. The factory racebikes had magnesium SA's.
 
At a huge cost.

I’m saying that engineering decision are also driven by other factors apart from performance.

So they switched to the V4 platform to save money? 🫣

They switched to V4 at huge cost but it wasn’t done for performance considerations?
 
So they switched to the V4 platform to save money? 🫣

They switched to V4 at huge cost but it wasn’t done for performance considerations?

High strung V2 wasn’t able to pass Euro emission regs and also achieve the required performance. It was necessary. That’s why they went to V4.
 
It’s not technically superior when the bean counters get involved and the costs associated with the change don’t make sense.

It can still be technically superior even if it doesn’t make sense financially… obviously. You’re conflating commercial considerations with technical superiority.
 
You are missing the point, which is that you seem to be arguing that the SSSA is chosen for performance considerations and yet in GP they only focus on performance and they do not choose the SSSA.

I bet they didn't choose because it would have been a change to too many things at once.

V4 engine first, now swing arm.
 

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