Author Topic: 84 ATK560  (Read 6897 times)

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Offline bishboy

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84 ATK560
« on: March 11, 2014, 12:03:29 PM »
Just the thing to win that holeshot  ;D 

I believe the 84 ATK560 was factory fitted with drum brakes front and rear, but you would have to put an evo compliant front end on it

The same guy also has a 85 model for sale and a 83 CR250 with mugen bits and an ohlins USD front end :o

http://www.vintagemx.us/cgi-bin/largephoto.cgi?C=Ab4eHakcpGbfKoko

Offline firko

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Re: 84 ATK560
« Reply #1 on: March 11, 2014, 12:32:21 PM »
Quote
I believe the 84 ATK560 was factory fitted with drum brakes front and rear, but you would have to put an evo compliant front end on it
The '84 ATK had a countershaft mounted disc brake I believe. It'll never fit into Evo, or shouldn't be.....(said Firko, dreading that he's started another Evo flame job ::))
« Last Edit: March 11, 2014, 12:35:28 PM by firko »
'68 Yamaha DT1 enduro, '69 Yamaha 'DT1 from Hell' '69 DT1'Dunger from Hell, '69 Cheney Yamaha 360, 70 Maico 350 (2 off), '68 Hindall Ducati 250, Hindall RT2MX, Hindall YZ250a , Cycle Factory RT2MX flat tracker, Yamaha 1T250J, Maico 250 trials, '71, Boyd and Stellings TM400, Shell OW72,750 Yamaha

Simo63

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Re: 84 ATK560
« Reply #2 on: March 11, 2014, 12:36:53 PM »
Quote
I believe the 84 ATK560 was factory fitted with drum brakes front and rear, but you would have to put an evo compliant front end on it
The '84 ATK had a countershaft mounted disc brake I believe. It'll never fit into Evo, or shouldn't be.....(said Firko, dreading that he's started another Evo flame job ::))

Haha :)

Offline Slakewell

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Re: 84 ATK560
« Reply #3 on: March 11, 2014, 12:47:18 PM »
So the single shock is judged link-less like a YZ?  So if it had a drum rear brake it could be EVO. Odd bike that dosent really fit EVO IMO.
Current bikes. KTM MC 250 77 Husky CR 360 77, Husky 82 420 Auto Bitsa XR 200 project. Dont need a pickle just need to ride my motorcickle

Offline firko

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Re: 84 ATK560
« Reply #4 on: March 11, 2014, 01:51:57 PM »
There is on drum brake to my knowledge Mick, it had the rear disc brake mounted on the countershaft and after that idea proved to be prone to failure, a conventional rear disc went onto later models. I may be wrong but I don't think there were ever any drum/drum ATK's. The single shock setup is very similar to the KTM system and isn't linkaged.
                                                                             
'68 Yamaha DT1 enduro, '69 Yamaha 'DT1 from Hell' '69 DT1'Dunger from Hell, '69 Cheney Yamaha 360, 70 Maico 350 (2 off), '68 Hindall Ducati 250, Hindall RT2MX, Hindall YZ250a , Cycle Factory RT2MX flat tracker, Yamaha 1T250J, Maico 250 trials, '71, Boyd and Stellings TM400, Shell OW72,750 Yamaha

Offline evo550

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Re: 84 ATK560
« Reply #5 on: March 11, 2014, 02:25:21 PM »
Firko, there was a late '83 560 version that had what looked like Yamaha front end with drum rear brakes, so this could be legit Evo with correct  front end, still a cracker of a pre '85 weapon for $2500

Offline Michael Moore

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Re: 84 ATK560
« Reply #6 on: March 11, 2014, 02:29:54 PM »
I've read that in fact the KTM is like the ATK, as Leitner did a linkage-less bike for KTM several years prior to their version.

cheers,
Michael

Offline Nathan S

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Re: 84 ATK560
« Reply #7 on: March 11, 2014, 02:42:26 PM »
According to AmericanDirtBike.com, this is a photo of a 1984 ATK: http://www.americandirtbike.com/86-560.gif
It is clearly an Evo bike in stock form.
Note the KTM TLS rear drum, just like the one for sale.

I can't pick the forks/hub on the bike in the official photo, but they could well be CR480 bits.
I do recall Horst Leitner being quoted in MXA or US DB in the very late 80s or early 90s saying that he thought the best forks ever were Kayaba's 43mm forks from the early 1980s because they had the least stiction (and that everything else could be fixed).

It would then seem likely that the '84 ATK had '83/84 Yamaha or '84 Suzuki forks & front brake on it. Triple clamps look like Yamaha to me.

As to Evo eligibility with the CR480 bits... The standard ATK is unquestionably Evo legal. This ATK has bits from its era (actually older), so they're neither "later bits", nor is it "modifying the bike to comply".


The good thing about telling the truth is that you don't have to remember what you said.

Offline smed

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Re: 84 ATK560
« Reply #8 on: March 11, 2014, 04:34:18 PM »
I think only the 2T models had the countershaft disc  :-\

Offline Ted

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Re: 84 ATK560
« Reply #9 on: March 11, 2014, 05:07:20 PM »
According to AmericanDirtBike.com, this is a photo of a 1984 ATK: http://www.americandirtbike.com/86-560.gif
It is clearly an Evo bike in stock form.
Note the KTM TLS rear drum, just like the one for sale.

I can't pick the forks/hub on the bike in the official photo, but they could well be CR480 bits.
I do recall Horst Leitner being quoted in MXA or US DB in the very late 80s or early 90s saying that he thought the best forks ever were Kayaba's 43mm forks from the early 1980s because they had the least stiction (and that everything else could be fixed).

It would then seem likely that the '84 ATK had '83/84 Yamaha or '84 Suzuki forks & front brake on it. Triple clamps look like Yamaha to me.

As to Evo eligibility with the CR480 bits... The standard ATK is unquestionably Evo legal. This ATK has bits from its era (actually older), so they're neither "later bits", nor is it "modifying the bike to comply".

Nath....It's been stated that Evo has no era or period....so older / newer is totally irrelevant ( not my ruling, judgement, opinion......just saying )

Anyway, it looks like I'm picking up a moto sickle from you at Canberra round. ( fu...in uteless qlder's ) ;D ;D ;D
81 YZ 465 H   77 RM 125 B

Simo63

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Re: 84 ATK560
« Reply #10 on: March 11, 2014, 05:19:32 PM »
Anyway, it looks like I'm picking up a moto sickle from you at Canberra round. ( fu...in uteless qlder's ) ;D ;D ;D

We love ya Ted :)

Offline John Orchard

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Re: 84 ATK560
« Reply #11 on: March 11, 2014, 05:26:47 PM »
If the forks are from a non Evo bike (CR480 monoshock) then not legal as far as I was aware.
Johnny O - Tahition_Red factory rider.

Offline Ted

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Re: 84 ATK560
« Reply #12 on: March 11, 2014, 05:29:29 PM »
You are so yesterday Johnny ;D ;D
81 YZ 465 H   77 RM 125 B

Offline Ted

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Re: 84 ATK560
« Reply #13 on: March 11, 2014, 05:30:41 PM »
Anyway, it looks like I'm picking up a moto sickle from you at Canberra round. ( fu...in uteless qlder's ) ;D ;D ;D

We love ya Ted :)

Don't forget the pizzas :D
81 YZ 465 H   77 RM 125 B

Offline Slakewell

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Re: 84 ATK560
« Reply #14 on: March 11, 2014, 05:54:10 PM »
Current bikes. KTM MC 250 77 Husky CR 360 77, Husky 82 420 Auto Bitsa XR 200 project. Dont need a pickle just need to ride my motorcickle