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The 4-stroke displacement limit is, what, 1000cc? (Didn't write it down earlier, not sure where to look now.)



Yamaha's inline-4 approach makes a lot more sense than Honda's (ahem) unorthodox V-5 thing from a product POV. Probably will steepen the learning curve once they're on the track, too.



Sponsors or not, what is the deal with this Ducati Dark/Rustoleum finish thing? As if that flat-black MV Agusta wasn't ugly enough....
 

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Hey Suzuki, it's(r1) still kicking! Whack it on the head and go for the kill!!!



Just kidding.



I'm happy to see that Yami has plans to share its technology advances with the rest of us at some point in the future.



But for now.... GO KENNY!!!
 

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this is old news, but they left out a few things...

taken from the post ride interviews with Checa and Biaggi:

"...the power is too timid..."

"...the bike is obviously heavier than the YZR-500.."

"...the tires were only lasting 2 laps..."

grand prix bikes are nearly perfect racing motorcycles. if you show up on a heavy bike that's down on power and shreds tires, you can kiss the podium goodbye.

hey Yamaha - better bring a few YZR-500's as backup
 

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headed for the street

obviously this is on it's way to the street. if you look at the front of the bike you'll see spots in the fairing for turn signals, as well as the two piece seat... and the tape where the brake light should be. should be nice in blue.... of course i saw it on motorcycledaily.com a week ago.
 

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It is well known...

Why are we messing with this? It is a well known fact that two strokes can make more horsepower with less displacement and therefore, less weight (yeah, I realize this is a generalization, so spare me.) There is simply no way this bike will be competitive in GP racing without some miraculous engineering, and even then, it won't take much for the two strokes to regain the upper hand. It will of course be King Of All Streetbikes if it is produced, and would rule the Formula Xtreme class, but GP? I'll believe it when I see it.
 

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Re: It is well known...

The reason for the switch to four strokes in GP is the same reason as the switch in dirt. Mainly two things. One smoother power delivery with increased engine braking. Second enviroment. The enviromental lobbiest are everywhere and this is effecting our racing. Four strokes run cleaner, thus four stroke racers.

I personaly like the four stroke power bands better than two stroke but there is a signifigant horsepower and weight advantage to a two stroke.
 

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The only thing that differs from the previous official Yamaha press release I gave you (and wich you posted earlier) are the photo's. So I don't know what the last lines ("Note....") are about.
 

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Re: THIS IS GAY!

Fourstrokes were always allowed in GP racing, Giacomo Agostini and MV Agusta won most and all (in that order) of their titles on them.

The only thing wich could be considered stupid, is dumping the 500cc limit in favour for a 990cc one.
 

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Maybe the sanctioning body should just phase out two strokes if environmental concerns are a problem and stick to the time-honored 500cc displacement limit. Of course that might not be acceptable as it would have a tendency to make superbikes the "Big Dog" of the roadracing scene unless the GP technology really stepped up ...
 

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For many years, Honda's NSR was the fastest of the GP bikes. Back when the RC45 was around, Honda frequently stated that the WSB-spec RC45 was FASTER than their GP bike. An the RC45 was only 750cc. Why is it so hard to see that a factory-only 1000cc bike should easily outperform a GP bike? The WSB times for the last couple of years have been spot on, and sometimes even quicker than the GP times. And best of all, the technology will eventually trickle down into street-bikes you or I will own, unlike much of the 2 stroke technology.
 
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