New Gas Gas 4-stroke Trials Bike

[J.D.]

Nice pics of new gas gas 4-stroke trials bike at:

http://www.trialscentral.com/cms/sho...articleID=3496

[Metalefty]

Wow, that jug looks like a weird 2 stroke. I assume that's the new lateral valve engine.

[J.D.]

very compact looking 4-stroke engine....nice


-J.D.

'01 Gas Gas 300xc
'03 Montesa 315r

[TooFastTim]

Originally Posted by Metalefty

Wow, that jug looks like a weird 2 stroke. I assume that's the new lateral valve engine.

WTF is a "lateral valve"?

Anyway it's an FI sidevalve. Pretty kewl looking. I suppose I'll be painting my Raga rep red now.

[gasgasman]

Side valve motors are torque monsters.
All those tugs you see at the airports have side valve motors.

I wonder why they called it a TXT?(same as the 2stroke)

[Metalefty]

Originally Posted by TooFastTim

WTF is a "lateral valve"?

Anyway it's an FI sidevalve. Pretty kewl looking. I suppose I'll be painting my Raga rep red now.

When I first started hearing about these motors last winter, that is what they were being called. Doesn't lateral mean to the side?

[AZRickD]

Old school.

IIRC, (or maybe it was "side valve") they were very common in 1920-ish +/- motorcycles and automobile engines.

Rick

[TooFastTim]

I suppose lateral would be an unusual but correct way of describing the valves.

[jeffd]

This is the same motor designed that is referred to as a flathead? Right? I once owned a 1947 willys jeep that came stock with a flathead 4 motor...

The new gasgas motor should be simple design, very light with loads of low end torque - downside will be trade-off on top end power.

A friend of mine once told me something that comes to mind... "The dog of simplicity will piss on the tree of technology every time..."

jeff

[GMP]

For a trials bike it makes perfect sense. There is nothing higher on that motor than a 2-stroke. Who needs a DOHC motor? Its just like the 4HP Techumseh in your first "mini-bike" . Well, for guys around my age anyway.