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RickD996 said:
Cassette gearbox just means you can pull the gearbox without splitting the cases. 2016 ZX10R has cassette gearbox, and pretty sure another model year fireblade
Click to expand...
well the panigale v4 doesn't atm..... so thats an upgrade for homologation. now whether its a seamless box.. and I cant wait for the interpretations of what that means
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maybe a cassette style gearbox is an easier way to service the new seamless design....... you don't have to change the gears. Remember in Moto GP when Honda first started hiding behind the screens to service the seamless box?

Does that help ? ;-)
 
andyb said:
maybe a cassette style gearbox is an easier way to service the new seamless design....... you don't have to change the gears. Remember in Moto GP when Honda first started hiding behind the screens to service the seamless box?

Does that help ? ;-)
Click to expand...

Seamless gearbox servicing is most likely verboten in WSBK rules. So why add something that you can’t exploit in WSBK?
 
Seamless gearbox for a road bike? Unlikely from what i know about their maintenance requirements but possibly they will have a cassette with the seamless as an optional upgrade?
 
I seem to have read more than you...
  • Only one (1) set of gearbox ratios will be allowed for the whole season. The ratios can be freely chosen.
  • The ratios chosen by the team for the season (individually and separately for each and every entry) must be declared before the start of the first event (includes wildcard and one-event entries).
  • Only the homologated primary gear ratio may be used (see Art. 2.4.8.13).
  • The layout of the transmission shafts must be the same as on the homologated motorcycle.
  • The gear design and material are free.
  • The selector drum and complete gear index mechanism are free.
  • The selector forks may be changed. However the forks must engage with the same gears and function in the same way as on the homologated motorcycle (i.e. no dog boxes if not fitted as standard).
  • Countershaft sprocket, rear wheel sprocket, chain pitch and size maybe changed.
  • The sprocket cover may be modified or eliminated.
  • It will not be allowed to change the gearboxes at the track - a broken Gearbox will equal a broken engine.
  • An external neutral selection mechanism may be fitted.
  • Seamless shift gearboxes are not allowed. Should the homologated base model be originally fitted with a seamless shift gearbox then the complete homologated gearbox assembly may be used with no modifications allowed excepting surface finish.
 
2 things to think about - sequential gearboxes are used in WSBK N-1-2-3-4-5-6. This could be what is going to show up on the bike which would be great for trackday/club racing no difference for WSBK. OR they could have developed a consumer level seamless gearbox, in which case it ALSO will not be allowed on WSBK (short of rule change). But if available would be an option, will not come on bike - to keep it under 40k cap
 
KarlKani said:
2 things to think about - sequential gearboxes are used in WSBK N-1-2-3-4-5-6. This could be what is going to show up on the bike which would be great for trackday/club racing no difference for WSBK. OR they could have developed a consumer level seamless gearbox, in which case it ALSO will not be allowed on WSBK (short of rule change). But if available would be an option, will not come on bike - to keep it under 40k cap
Click to expand...

Per the current rules, you can't fit an optional seamless gearbox. Seamless would have to be fitted from factory.

From what I've read, seamless gearboxes are notoriously costly and service-heavy. A robust consumer seamless box would be too big physically and heavy unless Gigi has some crazy engineering tricks up his sleeve. And considering that Ducati hasn't even gone with cassette style gearboxes, they haven't shown themselves to be at the forefront of gearbox innovation. I could see Honda doing this before any other manufacturers, not Ducati. Honda has the engineering knowhow to feasibly pull a consumer seamless box off (see oval combustion chambered NR750 and mind-altering V5 layout in the RC211V). But I think it would be both cost, service, and weight prohibitive.

I'd assume a more race oriented gear layout like you outline above with a neutral block off. It's a simple solution and can already be easily be fitted.
 
The reason seamless gearboxes are only seen in race series is that the mechanism that makes it seamless wears extremely fast and is typically changed after each race, something not feasible for mass consumption, but Ducati has been developing a special tab system that eliminates most of the friction wear on the mechanism, that will in turn give it longer life, just long enough for public consumption.

Frankly if they pull it off it will be the biggest advancement since the Desmodicci valvetrain.
 

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