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Old 06-09-2009, 11:49 PM   #16
middy
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cr500e then for you
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Old 06-09-2009, 11:54 PM   #17
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Quote:
Originally Posted by middy
cr500e then for you
ATK also make a 700 2 stroke I'll have to look more into it
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Old 06-10-2009, 12:03 AM   #18
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WOW, cool!

I had no idea Maico was back! Way cool. Thanks for the link.

Now, having had 400 and a 450 Maico's in the past, I can't even imagine a 700! Holy moly.

But I'd sure like to give one a try!

Good luck and have fun, Mark H.
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Old 06-10-2009, 12:23 AM   #19
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ATK 700 intimidator... it's a MX bike

Quote:
Originally Posted by rickjames
ATK also make a 700 2 stroke I'll have to look more into it
website:

http://www.atkusa.com/Default.aspx


Ana rticle on the bike from 2003... (it's been around a while)


Publish date: Mar 1, 2003
By: Rick Sieman
Source: Dirtbike at Off-Road.com



So You Say You Want Some Serious Horsepower?


Frank White put the ATK through the paces for a few laps at the Desert Vipers Grand Prix.

ATK, the American-based company, has been around for a long time now. And for much of that time, they used Rotax engines of one sort or another in their own unique frames. However, the Rotax two-stroke technology has become rather dated, so ATK went hunting for some new powerplants. And while they were at it, they also came up with entirely new chassis designs.
Interesting, for sure.
Their approach is one that we like: all the bikes will be considered multi-purposes off-road machines, not pure motocross or pure enduro bikes. This means, simply, that all the bikes will come with lighting capabilities. They won't come with headlights/taillights, but if you need to have lighting for some reason, all you'll have to do it bolt on the lights and hook 'em up.
Now, for the big news. Here's the new line-up for ATK:
  • 250
  • 320
  • 390
  • 500
  • 620
  • 700
THE 700cc ATK INTIMIDATOR!

New King of the Beasts? The 700cc ATK is certainly in the running for that title.

Naturally, our attention was drawn to the 700. Based on the latest technology from the folks who built the famed Maico/M-Star motors, the Intimidator (good name!) has a piston big enough to use to mix paint in.
I was scheduled to test ride the Intimidator at the Desert Vipers Grand Prix, but my motorhome lost the rear wheels on the way to the event, and I spent most of the weekend getting the thing fixed and back home. However, Mike Hobbs from ORC, was there and managed to get some photos and feedback on the bike. Frank White (CEO from ATK) put in a few laps on the beast to shake it down a bit, so we can at least give you a preview. We'll arrange a full test session with ATK later on and give you some actual riding impressions.
For now, here are some specs and info on the 700:
Intimidator Specifications
Engine Type:Liquid-Cooled, 2-stroke, single
Displacement:685CC
Bore & Stroke100X87 mm
Carburetion:39mm Kehin
IgnitionSEM lighting output 130 watt
Starting System:Kick start
Transmission:5-Speed, Wide Ratio
Fuel Capacity:2.5 Gallon / 3.5 Gallon
Front Suspension:Paioli USD
Rear Suspension:WP
Front Tire:Dunlop 755 80/100-21
Rear Tire:Dunlop 756 120/100-21
Final Drive:D.I.D. V6 520 O-ring chain
Dry Weight:238 lbs

Plated pipe and left side kickstarter. Looks like a Maico, and why not?

Carb is a smallish 39.5mm Keihin; pipe curls neatly up and out of the way.

GPR steering stabilizer ? stock!

Frank is justifiably proud of the latest ATK creations.
Standard Features

  • Talon billet aluminum hubs
  • Answer Protaper bars
  • Braided stainless steel lines
  • Nickel plated exhaust pipe
  • Radialite rear sprocket
  • Excell rims
  • GPR steering stabilizer
  • Wave rotor disc brakes

Talon rear hub; Radialite sprocket. Stock.


Another Talon hub up front.


Wave rotor and Brembo brakes.


With the head off, a rather huge hole is evident!

Options
  • Tire choice
  • Excell rim color choice
  • Front wheel size (20" or 21")
  • Plastic colors
  • Seat foam and cover
  • Suspension valving and springs
  • Handlebar bend
  • Final gearing
  • Jetting
  • Lighting kit
  • Skid plate
  • Handguards
  • 3.5 gallon fuel tank

Compact motor is based on the latest Maico stuff.


White at work on the 700 at Adelanto.

ATK is going to let the potential customer, custom order their motorcycle with the options noted above to fit their individual riding desires and conditions. This is new to this industry.
The retail price has not yet been determined, but after talking with ATK folks, it will almost certainly be in the ballpark of between $6000 and $7000. When you consider the astonishing amount of top dollar items that come on the bike as standard equipment, you start to wonder how they can do that. Go price items like Talon rims, Protaper bars and a quality steering stabilizer, and you'll see what we mean.
Performance? Since we have yet to sling a let over the bike, we'll give you the thoughts of Frank White, the ATK CEO who rode the bike at Adelanto:
?It pulls right off idle and all the way to peak revs with more power than anyone will ever need. It's sort of like a 490 Maico on steroids. The power is simply amazing and very electric!"
With this sort of statement lodged in our mind, we're looking forward to a serious ride on this beast, and others in the 2004 stable of ATK bikes. Stay tuned to Off-road.com.
For more information:
ATK MOTORCYCLES
1163 West 850 North
Centerville, UT 84014
(801) 298-8288
FAX (801) 299-0710
Website: www.atkusa.com




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Old 06-10-2009, 12:36 AM   #20
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ATK = Maico?? The buggers identical.
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Old 06-10-2009, 12:37 AM   #21
troy safari carpente
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Cool2 2009 Maico 685cc 2 stroke ENDURO model...

...Maico 685 Enduro`099,490.00EUR

Click to enlarge
Model: Maico 685 Enduro
Cooling: Water
Inlet system: Reed walve system
Exhaust system: S.E.E.S. exhaust system
Cylinder capacity: 685 ccm
Measures: 100 x 87mm
KW/horsepower: 60/82
Caburator: BING 44 mm
Transmission: 5 speed gearbox
Ignition: 12V / 130W SEM
Frame: Chrom Molybdän
Front fork: White Power Upside Down 48 mm
Front brake:Brembo with 260 mm wave disc
Front rim: 1.60 - 21
Front tyres: 90/90 - 21
Rear suspension: Maico Twin Link with Reiger shock
Rear brake: Bremo with 220 mm wave disc
Rear rim: 2.15 - 18
Rear tyres: 140/80 - 18
Tank: 9,5 Liter
Wheel base: 1480 mm
Ground clearance: 388 mm
Seat height: 960 mm
Weight: 111 kg



The 620cc 2 stroke motoard looks like this from the RHS (could not find a pic of enduro).

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Old 06-10-2009, 12:40 AM   #22
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Quote:
Originally Posted by Bigem
ATK = Maico?? The buggers identical.


ATK = sells in US

Maico = sells in Europe

(both marques have a certain "allegence" in their respective homeland niché marketplace).

Don't know if available in Oz?
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Old 06-10-2009, 12:44 AM   #23
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Quote:
Originally Posted by troy safari carpente
...Maico 685 Enduro`099,490.00EUR

Click to enlarge





The 620cc 2 stroke motoard looks like this from the RHS (could not find a pic of enduro).

"but officer, you can't confiscate it, I've only had it for 10 minutes........what, you want my license too?
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Old 06-10-2009, 01:02 AM   #24
troy safari carpente
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Kids in the local park on 80cc MX bikes...

Quote:
Originally Posted by rosscoact
"but officer, you can't confiscate it, I've only had it for 10 minutes........what, you want my license too?
Scene: The Cromer Park reserve (up behind DEE WHY Sydney) one saturday afternoon... the early 90's. A police patrol car has a bunch of young lads on unregistered 80cc dirtbikes bailed up, for riding in the park...

Police officer: "Now you know you can't ride here fella's... Where can I find your parents, I wan't to talk to them..."

MX kid: "Look behind you bacon breath... he's the one on the 700cc minibike..."
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Old 06-10-2009, 02:06 AM   #25
Dusty Rhodes
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I seem to recall a 701 Maico back in the 70's ..????
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Old 06-10-2009, 02:10 AM   #26
troy safari carpente
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only 2 off...?

Quote:
Originally Posted by Dusty Rhodes
I seem to recall a 701 Maico back in the 70's ..????


Maico 501... 1973
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troy safari carpente screwed with this post 06-10-2009 at 02:19 AM
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Old 06-10-2009, 02:18 AM   #27
Dusty Rhodes
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Quote:
Originally Posted by troy safari carpente


Maico 501... 1973
Yep that would be it. I knew there was a 7 somewhere
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Old 06-10-2009, 03:05 AM   #28
troy safari carpente
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Quote:
Originally Posted by jfn68
What would be estimated top speed of this apex predetor?,wasnt the ktm550 dxc "good" for 125mph tested by dirt bike magazine usa?,anyone who buys these giant 2 strokes gets instant legand status
I had a riding mate that raced a 1990 540 DXC that was prepped for Baja events. It was geared to pull 116 mph (190 km/h near enough) on fireroads/packed sand. It'd probably go faster on tarmac (hence the 125 mph figure that DirtBike referred to maybe?), but at that speed for prolonged periods on asphalt there were other problems to worry about (see below).

I pre-run and rode the thing down around San Felipe and other places in Baja with him on a number of occassions. The accelleration was like nothing else (SE like in some terms, but as it was far lighter and it hit WAAAY harder that the 950 twin... it was much scarier!). Punting this missile around in the open deserts of the Mojave, in Nevada, Arizona or even Baja... I can understand... but to ride it anywhere else (MX track, enduro singletrack), I thought was insane! But he seemed to enjoy it.

In my mind, you could only use a fraction of that power in MOST situations... it only came into it's own on the wide open whooped sections of the SCORE desert race courses... I can only imagine how brutal the ATK/Maico would be with another 160cc on tap!

Oh...? What was the problem with running the KTM 540DXC wide open on the tarmac in the 35 degree plus desert heat for a prolongued period???

The rear tyre would get so hot, that it threw the center knobs off the dunlop rear tyre... one time during a 10 mile blast down an extremely hard pack dirt road south of san Felipé during a pre-run weekend, it tossed one knob straight thru the inner rear guard, through the airbox and into the air filter element. Motor lunched it, locked up the rear wheel in a heartbeat and left a skid mark for near a hundred meters...

He didn't ditch it, but as he was standing up at the time, the decelleration threw him forward - his thighs hit the bars - and he was looking at his front fender, with the rear wheel locked, still doing about 85 mph!

When the chase van arrived the bike needed the barrel, piston, carb, airbox and rear tyre changed. RN just needed a change of riding pants...
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Old 06-10-2009, 03:14 AM   #29
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Quote:
Originally Posted by factory
Unless they've really weaved some Maico magic as per the old 490 I can't see this being much chop. Too vibey and heavy on fuel for longer rides, to much grunt, vibes, flywheel, Hp, everything for off road.
Imagine the vibration!! God a >700cc two stroke, you'd be lucky to hold on to it for the vibes. It must have a >100mm bore, therefore a huge slug. Think about it, if it were a 4 cyclinder it would be a 2.8lt. Don't see many 2.8lt 4 pots in performance applications. Too much capacity per cylinder, heavy pistons, vibrations, poor cylinder filling etc. Of the few engines with cylinder capacities this large they need a balance shaft to stop vibes. Apparently the ideal size cylinder (for volume to surface area ratio) and therefore cylinder filling is 300cc as evidenced by F1 3500cc V12, 3000cc V10 and 2400cc V8. Also at that size it will be slow revving and need a heavy flywheel so it doesn't stall - making it hard to turn. There has to be a reason why smaller and smaller bikes are getting more popular for offroad use. A big bore is now a 300cc according to the other sane motorcycle makes.
Yeahbutt... 82hp / 101 kg who cares about all that stuff!
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Old 06-10-2009, 03:31 AM   #30
troy safari carpente
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Quote:
Originally Posted by Autostream
Yeahbutt... 82hp / 101 kg who cares about all that stuff!
Auto... you could probably talk Nevbottomlesspockets/large garage/tolerant wife into getting one, so you and the lads can head out to NW vic and play in the sand...

Take Knackers, Mudguts and Camo along to document it all...
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