Rumour has it this is the 2010 yz 450f

[laserracer]

Ok a pretty good source over at thumper says this is the 2010 yz450f .... With fuel injection at the front of engine, exhaust straught out the rear of the head, cast alloy bolt together frame ,electronicaly controlled rear shock,

Dunno may just be rumour but a pretty cool concept

OOOPPPS just read MR YAMAHA Isnt happy about pics getting out so have removed them

[takitimu]

Interesting ideas, though got to say I reckon it's a fake ( two sets of front mudguards one @ front / one @ rear, petrol tank facing wrong way, air filter case pointing to radiator guard ).

[laserracer]

over on thumper pics still up go to ..make model specific ..yamaha..yz/400/426/250 under 2010 yamaha 450

[barty5]

Guess time will tell not bad idea less damage to be done to header pipe. interesting part will be the tuneing due to short exhaust system and noise level would also have to be taken in to account with shorter exhuast.
I still want a 2010

[Boosted]

yeh same, my next bike will be a 2010 yz250f :)

[laserracer]

HMMMM at least on a nice cold day that exhaust will keep your botty warm and toasty:yes:

[telliman]

yeh same, my next bike will be a 2010 yz250f :)

yeah bro with efi, cant wait!

[barty5]

you yamaha thinking while everyone else has done just the 450 as fuel injected they will have sat back and waited (not like the non injected isnt competive away) and bring out both the 450 and 250 inject at the same time and learnt from everyone elses mistakes.

[laserracer]

yeah sorta looks like they may follow the europeans husa berg ,bmw crowd,with some of there ideas, and some of there own the artical also said the WR was coming out with the same stuff..But suppose we will have to wait till 2010 to find out..i know some 450 bmw's are having starting problems seems to be something to do with the wiring and ive seen one in the states with the cast chassis that has cracked in half

[Sammikins]

you yamaha thinking while everyone else has done just the 450 as fuel injected they will have sat back and waited (not like the non injected isnt competive away) and bring out both the 450 and 250 inject at the same time and learnt from everyone elses mistakes.

I didn't understand any of that.

[barty5]

I didn't understand any of that.

simple eveyone else honda suzuki kawasaki bought only the 450s out fuel injected so far.
Yamaha has sat back and waited learnt for their cock up and will bring out both the 250s and the 450s with injection.

[Sammikins]

Slightly better, you still need to use punctuation every now and then.

[barty5]

Slightly better, you still need to use punctuation every now and then.

lets not get on that band wagon again.hahaha

[B0000M]

lets not get on that band wagon again.hahaha

is there any point in writing if nobody can read it?

[FlangMasterJ]

They have yet to update the silencer, looks the same as it did ten years ago.

[barty5]

They have yet to update the silencer, looks the same as it did ten years ago.

they did in 08 but had to go back due to noise levels.

[flyingcr250]

Ok a pretty good source over at thumper says this is the 2010 yz450f .... With fuel injection at the front of engine, exhaust straught out the rear of the head, cast alloy bolt together frame ,electronicaly controlled rear shock,

Dunno may just be rumour but a pretty cool concept

OOOPPPS just read MR YAMAHA Isnt happy about pics getting out so have removed them

ooooohhhh weres the pics???

[Taz]

Looks good....

[honda_power]

looks pretty good, if its light its going to be a sweet bike

hope they do something to the yz's... doubt it though :(

[xwhatsit]

I suppose it's something you can do with a watercooled bike. I've always wondered why bikes weren't build like this from the beginning... I suppose the reason being that it's next to impossible to cool the exhaust valves if they're behind the airstream.

[honda_power]

it would cook the shock wouldnt it?

[noobi]

what would be the advantage of putting the inlet/exhaust the other way around? the fuel tank would be in the middle so better weight distribution anything else?

[camchain]

Cannondale (Mtn Bike maker?) made an engine with this layout a while ago. I don't think they made very many before going bust.

[Taz]

It's not a new idea.... Nothing is really, it's all been tried brfore. Some guys used to turn the heads around on their triumphs also.

[MikeJ]

Nothing new with this design. The Cannondale Bicycle Company branched out into motorcycles and produced a MXer in 1999 with EFI from the front and a rear exhaust plus other features. The company went bust in 2003 and was bought by ATK. ATK now sell an upgraded version of the original design.
www.atkmotorsports.com/rider%27sarea/stories/2007/october/bornintheusa/atk450.jpg

[cheese]

That ATK bike is the ugliest bike I've ever seen.

[laserracer]

Have to agree with CHEESE wouldnt win any beauty contests..as for that curvy frame..notice how that hasn't become the standard

[clmintie]

Have to agree with CHEESE wouldnt win any beauty contests..as for that curvy frame..notice how that hasn't become the standard

Only be a couple of years until bikes won't look anything like today's standard..... Bring it on, I love watching the future arrive in a full on skid, yelling yea ha.....

[oldguy]

Looks good, yamaha have done the reverse cylinder before with reasonable success, on their TZR250 3MA motor for all you 2stroke fans.
thou it is a road bike haha.

looking at the pic they have got the exhaust sorted by throwing a small loop in just to get the length.

[Armitage Shanks]

Any 'Newsflash' on when they might have the simplicity, reliabilty and 65 hps of the old 500's ?

Just curious ....seems it's all going arse about face to me

[CHOPPA]

I heard the 2010 RMZ 450 comes with a supercharger.... :bleh:

[laserracer]

I heard the 2010 RMZ 450 comes with a supercharger.... :bleh:

is it really that slow that it needs a supercharger ??:dodge: