Engine inovations ??? !!!

[velocityatv]

What I think will be the grad finale will be if they use a reverse cylinder head. Like on the Cannondale.

Also I wonder if they'll adopt BMW's clutch idea. On the new 450 BMW dirt bikes the clutch is directly mounted to the crank shaft. No counter sprockets. Equaling less weight and a shorter engine design. That way they can place the motor more forwards or backwards depending on weight distribution.


I think power will fine. If it truely is lighter than the rest, less HP wont matter that much. Hell, my 250R right now would go tons faster if I shaved a few pounds off of my fat butt.

[ThePhantomRider]

Well from the pictures I have seen online and looking at the blacked out parts on the web, it looks like it will not be a rear combustion motor like Cannondale. The airbox is in the underseat position and in the blacked out parts where you can spin the bike around to look at what is released, you can see the header exiting the front.

Doesn't look like they adapted the pivot drive like BMW though.

TPR

[terko440]

Your right about the fat but part. ahaha

[velocityatv]

Thanks..............JERKO440

I guess it's better to be a smart @$$ than a dumb @$$

[rpyfz450]

Originally posted by ThePhantomRider
Doesn't look like they adapted the pivot drive like BMW though.

Is this where the engine's sprocket is concentric with the swingarm pivot?

[54warrior]

Originally posted by rpyfz450
Is this where the engine's sprocket is concentric with the swingarm pivot?

Yes.

[OutlawBill]

Originally posted by ThePhantomRider
Well from the pictures I have seen online and looking at the blacked out parts on the web, it looks like it will not be a rear combustion motor like Cannondale. The airbox is in the underseat position and in the blacked out parts where you can spin the bike around to look at what is released, you can see the header exiting the front.

Doesn't look like they adapted the pivot drive like BMW though.

TPR

look like it would be hard to change the front sprocket

[rpyfz450]

I'm surprised BMW did that on a modern machine. That design transmits engine torque to the rear suspension. Avoiding this is the reason why all manufacturers place the sprocket axle lower in the chassis than the swing arm pivot.

[motox450]

Originally posted by rpyfz450
I'm surprised BMW did that on a modern machine. That design transmits engine torque to the rear suspension. Avoiding this is the reason why all manufacturers place the sprocket axle lower in the chassis than the swing arm pivot.

Actually if you read the suspension theory threads and talk to some respectable tuners they will all tell you the exact oposite. Keeping the sprocket in line with the suspension motion removes all the chain torque from the suspension. The chain and drive now works on one similar curve with no spikes. On bikes now there is a spike point where the chain is actually tighter in one spot than others. This "spike" in the motion curve puts added pressure on the suspension. Other Manufacturers haven't used it do to the isses of removing and changing the countershaft sprocket. BMW fixed that by making the counter sprocket shaft hollow and the axle runs through it. There is a great deal of good information out on the design.

[54warrior]

Originally posted by motox450
Actually if you read the suspension theory threads and talk to some respectable tuners they will all tell you the exact oposite. Keeping the sprocket in line with the suspension motion removes all the chain torque from the suspension. The chain and drive now works on one similar curve with no spikes. On bikes now there is a spike point where the chain is actually tighter in one spot than others. This "spike" in the motion curve puts added pressure on the suspension. Other Manufacturers haven't used it do to the isses of removing and changing the countershaft sprocket. BMW fixed that by running the counter sproket is hollow and the axle runs through it. There is a great deal of good information out on the design.

I have to totallly.....














agreee with that. This has been a problem that has been known for years and BMW is the first (that I'm aware of) to go forward with a design such as this to correct it.