WOW, GasGas employees hang KTM dude and say KTM is not welcome there...

Can-Am would be close enough to American for me and Bombardier already has the DI 2 stroke stuff figured out.

not really.... he struggled to just anywhere near even the whole time.... takes millions of dollars to fund parts alone just to make pennies

Lets get AMF Harley Davidson back Lol

Bowling balls and HD. What were they thinking.

I had an 87" electric start ATK 604 Rotax, The small battery was epoxied to the under side of the airbox lid. Yes it was the one with the disc brake mounted to the countershaft. Crazy chain routing with an upper swing arm mounted idler roller and frame mounted lower guide roller as well above and below the countershaft sprocket. If you were a chronic brake dragger you were in trouble, as the tiny front sprocket mounted disc rotor would get cherry red. If the chain broke you were even in more trouble. LOL.

It was the smoothest bike I ever road down a stutter bump filled hill. The rear wheel stayed planted and wouldn't skip like all other bikes under braking. Loads of torque but it was mentally tiring to ride as the loudness of the exhaust and the engine's noise moaning out of the tail pipe under load of that short stock Muffler would tire you out mentally before it would wear you out physically.

It had only 1 "White Power" shock on the left side and no linkage. I think some of the first WP upside down forks available. It was my first 4 stroke dirt bike and I only had it about 6 months. I wish I still had it.

This is an example of the worlds best components, combined with great design and world class materials and great craftsmanship. Although somewhat obscure. The frames and rear suspension was designed by Austrian born Inventor "Horst Leitner". I believe he founded ATK motorcycles back in the early 80's. He went on to build the suspension systems for some of the best mountain bikes which he then sold that design to "Specialized" bicycles.

My ATK was just about like this one in the picture.


The Coaxial Countershaft system of the G450X BMW / CTS system if your riding the Husky 449/511, is the only bike that even comes close to the down hill feeling of the old ATK.

That's the rear brake master cylinder cover mounted to the front side of the blue frame tube at the base of the seat and gas tank area. See the brake pedal's push/pull arm?

And I thought the CTS system was 'out there' for design..... that onboard rear brake rotor is some crazy s#!t man

I guess it reduces unsprung weight.

Where does the chain go after it disappears into the frame area??? It looks like a about a 50 tooth counter-shaft sprocket, but I'm assuming it isn't.

There was a sprocket on top and a sprocket on the bottom that reduced the torque on the suspension which made it smoother on chop..... It was cool for some stuff but sucked if you needed to wheelie over something.... and the rear disc on the wheel was great in theory but sucked bad.... big air cooled 4 stroke produced tons of heat and boiled your brakes then you flew into a turn with no brakes.... They were very good bikes but some different ideas mean general public not going to buy them which means you wont be in business long...

That was a good bike right there.... 406 and the 280 were sweet engines along with the 560 4 stroke... My uncle being a US Rotax distributer we always had canned hams and ATKs.....

well as the owner of a small fleet of Polaris and Bombardier ATVs if any thing like that happens i hope its Bombardier that dose it my 04 330 outlander 4x4 HO is bomb proof NEVER A MOMENTS TROUBLE the Polaris's all of them newer its wrench, parts, wrench ,parts wrench wrench wrench im trying to unload the whole lot

I think the A-trac and the 449/511 was good d/p bike stuff but I didnt like it for rough offroad where you need to be able to quickly loft the front wheel over stuff....

AMEN!!
I'd still be a potential Husky repeat customer.
If the 449/511 platform continued to be evolved I wouldn't have even considered anything else.
Good call Kelly

449 is easy to lift the front wheel.... I imagine the 511 more so.
Although, to be fair, much easier once the stupid 2nd butterfly is gone

The idler wheels on my ATK's A-Trak suspension weren't really sprockets, they only had about 1/3rd of a sprocket tooth. Just enough of a tooth to center the chain and make the chain rotate them all the time. It had no problem lifting the front wheel over obstacles of nearly any size.

My ATK when I bought it was used for about 10 months. The guy I bought it from paid over $7000.00 for that ATK back then. Then he bought a similarly Rotax powered Can-Am, He put a set of Fox forks on the Can-Am. He still didn't like it and then sold it. He bought the ATK back from me along with the stock 45mm conventional Zokes from the Can-Am thrown in to the deal on trade. I put them on one of my old Maico's and I still have it.

Like the ATK and the G450X or Husky CTS,

Pull it up against a wall or a tree and stand up and give it some throttle and let the clutch out a little. It won't squat down the suspension like all other bikes do before the tire starts to turn and spin.

That's the advantage of these designs to me, simply explained.

It has no effect on the suspension. Some smart thinking from these guys.

This technology should be developed further.

I guess different strokes for different folks.... I didn't like it in SoCal.... And I feel standard suspension gives you better traction at times