Kawi2strokes.com Forum

What? NO HOLES?? If it is done right, you can get 72 holes in one disc, with a fair reduction in weight. Do the Moo Mod as well, even NICER disc.

I was just thinking about that. Please put my name in the hat.

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1972 H2 750 (x2); 2003 Buell XB9S; 2008 ZZR 600 (fundraiser for charity)

Then, there are the 12 stock street bike design discs (the H2R's used stock street bike H2 discs back then, HEAVY), Steve and I made from 7075T6 aluminum for Yvon's bikes, flame sprayed by Harry Hunt, half the weight of a stock steel disk, and then, we drileld the daylights out of 'em. Didn't have the excellent Moo Mod back then, or they'd have probably ended up weighing a pound or two per disc. We tried a lot of coatings for the aluminum discs back then, only Hunt's flame sprayed coating worked. We didn't have carbon fiber stuff then, either.

Yup, I plan to put holes in mine... Even though the thinning removes much more weight then drilling holes, the holes look slick imo.

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http://kawatriple.com/wtf/

Hey Andrew,
Am I crazy to think that it's getting to the point that fabbing a new plate out of modern materials might be faster than modifying the original boat anchor?

Seems like if you're running a modern caliper, using something as thick and hard as the original is more trouble than it's worth. I'm also asssuming that removing the rivets and re-attaching to the hub would not be too big a chore.

It's too bad that the guy on eBay that drills them for something like $65 doesn't also cut out the squares like John's design.

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There are only two types of motor sport racing:
Nitro and everything else
(Sometimes referred to as fast and slow)

Wrong correct H2R drill pattern. Hole sizes are also too small. But, you did have to be the one that stayed in the race shop after hours, and drilled them first bunches of discs, to get the pattern and hole size correct, and have Bertea Corporation engineer Dave Hussey next door at Morris Mags working late at night, to get that first pattern, taken from a 1965 Porsche Can-Am car.

Then, you should make some sort of story up that the reason YOUR pattern works better than that original 72 hole pattern is (fill in this blank).

It really isn't in the doing, it is in the story.

And, on the Morris Mags I ran on my stolen street H2A, Morris had bearing adapters that had the hubs for the discs already on the adapters, so, I had to drill the rivits out of the stock discs, then, bolt them to the hubs with countersunk Allen screws. Later Morris mags used a bearing adapter that only held the bearing, and sandwiched between the wheel and disc hub, no disc adapter. These guys were patterend off the original 1976 KZ900LTD Morris wheels that Eliott sold to the Kaweasaki factory in droves.

Hole diameter is just calculated by the area of the 2 circles the diameter of the hole, to be equal to the area of the cylinder wall of the hole.

I just personally don't like holes in discs......

I will draw the name Monday.........

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Twist the throttle, tilt the horizon, and have a great time. What triples are all about...........

It might be a good idea Jim, if you had the right material, getting one laser cut would be pretty quick and relatively cheap... My only concern would be my ignorance in picking the correct material with ideal grain structure to minimize warpage and material pickup...
Maybe the answer is a bolt on existing rotor to a custom hub???

Sorry for the highjAck Moo... I wish it were a S series rotor, I'd have my name in the hat for sure!

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http://kawatriple.com/wtf/

Maybe he can post a close up pic of it, but member 10sec h2 has a more modern rotor bolted to the stock carrier on his NOS h2.

viewtopic.php?f=2&t=1496&p=13553#p13553

If you haven't drawn a name yet...put me in the hat too!!

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71 A7SS, 73 H1D, 75 H2C, 85 RG400
92 NSR250 MC21, 93 TZR250 3XV
03 ZRX 1200R