Joined Aug 2007
11K Posts | 3K+
Pomona NY
Someone directly involved in producing the new frame said it "drops this stressed member ....". Make of that what you will. Certainly, most twin spar designs still use the engine for some kind of support and structural stiffness, but it's not comparable to the current Ducati situation.
EDIT: 990 times out of 1000, GPOne.com know more than I do. Very, very occasionally, I am better informed. In this case, my source is probably better than theirs (and their source is almost certainly very, very good indeed).
Mind you, there is no reason you should trust me over them. We shall see what emerges, first at Motegi (where Rossi will be grilled by MCN), and then at Valencia, when they actually test the bike after the race.
I
I think the current Ducati takes the concept of stressed member to it's logical conclusion as a concept. Engines being stressed members goes way back and is the norm nowadays. It's just a matter to what degree.
Egli framed Vincent
I think the current Ducati takes the concept of stressed member to it's logical conclusion as a concept. Engines being stressed members goes way back and is the norm nowadays. It's just a matter to what degree.
Egli framed Vincent
Yamaha Frame
Honda Frame
Great photos....
I am guessing these are production bike frames though, right ???
Anyone know, are the Yamaha, Honda and Suzuki MotoGP frames loosely based on the prod bike frames, or completely different.
Joined Jul 2011
1K Posts | 872+
Dont Know
The way I read it is the steering head would be linked to the swingarm by a frame rather than an engine. The state of the engine being "stressed" is something else.
Joined Oct 2007
4K Posts | 744+
Tuscany, Italy
If the "deltabox" is not closed at the back-- i.e. if it is the engine connecting the twin beams at the back, although the two beams may extend down to the swingarm at the sides -- then the engine is still stressed. And I doubt they can close the deltabox without a complete redesign of the engine itself. It seems Preziosi is proceeding by small incremental steps, each time pausing to check whether that's enough or they actually have to push the changes further. Kind of slow, but maybe like that they'll understand better what each single change does (or doesn't do). Probably at this rate they'll arrive at narrowing the blessed 90° angle in 2013...
Thank you. On another note - I respect your humility and objectivity in analysing the situation.
Anyway, it seems that we just have to wait.
Nice post, as usual. Your explanation seems pretty logical. It seems like the approach used by Ducati has been one of incremental evolution of the existing concept.
http://www.gpone.com...sulla-1000.html
Wait for the English Translation, as I don't have time, but apparently Rossi has matched Stoner's time at Jerez, something he was far from doing at Mugello.
"Today was the day of Rossi"...according to GpOne, lapping sub 1:39
Wait for the English Translation, as I don't have time, but apparently Rossi has matched Stoner's time at Jerez, something he was far from doing at Mugello.
"Today was the day of Rossi"...according to GpOne, lapping sub 1:39
Joined Oct 2007
4K Posts | 744+
Tuscany, Italy
Practically what they are testing now at Jerez could be the same frame concept used in the current 1198 SBK, with aluminium beams substituting the trellis. The frame is open at the back, and it is the engine closing it and supporting the swingarm. So the engine is still partially stressed, although the shock absorber should now be connected to the frame.
The rumors say Rossi lapped in 1:39 today.
Practically what they are testing now at Jerez could be the same frame concept used in the current 1198 SBK, with aluminium beams substituting the trellis. The frame is open at the back, and it is the engine closing it and supporting the swingarm. So the engine is still partially stressed, although the shock absorber should now be connected to the frame.
The rumors say Rossi lapped in 1:39 today.
GPOne said Sub 39, what's your source? It'd be nice to see Ducati back up there...
Good to see improvement by Ducati.
I hope the improvement is real, and not just a bogus leak to give hope to the faithful. I think 2012 is going to be a great year, with even Suzuki to make good improvements.
Just arrived in Singapore for the F1, and very pumped.
I hope the improvement is real, and not just a bogus leak to give hope to the faithful. I think 2012 is going to be a great year, with even Suzuki to make good improvements.
Just arrived in Singapore for the F1, and very pumped.
Krop, I respect you so much, but are you really believing Stoner lapped 1'37 on a tight and twisted go-kart-track with a 1000cc?
I think 800cc bikes have the ability to lap faster than the 1000 at twisted tracks, no chance a 1000 would be 2 seconds faster in Jerez. I believe that even in wide open tracks the 1000's will struggle to be one second faster, let alone Jerez.
Ducati's statements is that the 1000 can give a 0.5 sec per lap on average.
But we're all speculating on more speculation.
I think 800cc bikes have the ability to lap faster than the 1000 at twisted tracks, no chance a 1000 would be 2 seconds faster in Jerez. I believe that even in wide open tracks the 1000's will struggle to be one second faster, let alone Jerez.
Ducati's statements is that the 1000 can give a 0.5 sec per lap on average.
But we're all speculating on more speculation.
Joined Jul 2006
11K Posts | 291+
Texas
Joined Feb 2007
11K Posts | 2K+
Tennessee
Joined Jun 2007
10K Posts | 1K+
Norah Head
Oh, thats nice ..... was it Stoner's outlap? a cooldown lap? or the lap when Rossi knocked him off?
I think I'll wit for Rossi'a next race, the Rossi/Ducati train seem surrounded by myth, coulda/woulda, propaganda, "not quite true"'s.
Similar threads
