2010 Yamaha YZ450F photos and weblink:

I love it! Tons of innovation I think they're even going to teach riders how to ride standing up with that under seat header pipe. I'd be really surprised if ass heat isn't an issue.

Yeah, nobody's ever had any success with eliminating chain torque on the rear suspension. ATK even had to finally give up their design. It allows the suspension to work much better, but effects the attitude and reaction of the bike.



You can see how they made some brackets to move the motor forward, off the swingarm pivot.

Is that something they've done just for their own team race bikes, or are they now doing it on the bikes they sell to customers too?

The cylinder is pointed backwards...closer to the center of mass...and also the roll center....same with the fuel....its moved back too

And the airbox gets denser air charge near the steering head....as well the exhaust is straight out.....

in the 80's it used to be Honda that made all the big moves.....


but starting with the 4 stroke era in modern motocross..its been Yamaha...except they have followed a very evolutionary concept...TILL NOW

This is real big stuff.........

Pricing released today for UK - £7100 or $11746 at todays exchange rate! Anyone got a US price yet? (TC450 is £5895)


Dave

Think we have to recognise Blip Blip as the Clark Kent/Jimmy Olsen of news and valuable info. Keep it commiong Blip Blip-Love your work.

Do you think this will morph into the WR range for 2011

Looks like the cams will have to be removed to get at the shims - from the pics.

JMO - MAT

I think YZF's were always like that......

First 4 stroke MX Championship in the modern era.... 1993 FIM 500cc World Championship, Jacky Martens - Husqvarna TE610. First ISDT/ISDE overall win by a 4 stroke in the modern era.... 2000 ISDE Spain, Stefan Merriman - Husqvarna TE400.

Your right Norman.....it was right under my nose and I didnt see it :snore:


it all started right there........

I'm just your little.... Husky Guardian Angel!

Thanks Norman,
I am always spouting that one off among the MX faithful,,,,,before Jacky Martens, I believe it was Jeff Smith on the BSA B50 (Cheny or CCM I believe), there was long gap

That cylinder is the first thing I noticed as odd looking, with the typical frame lines going forward along with seat/tank that cylinder is actually slanted backwards. Maybe thats more for the exit of the pipe and straight air intake now instead of weight distribution. And notice how flat the bike is: Husky all the way.
Also cant really see the air intake size ect. but does'nt the front of the bike really take on most of the mud, blood and beer during a race. I see possible trouble there. Call the plumber we have a clog.
anyway, good job yami.