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‘83 Gpz750 Resto-mod, ‘78 Kz1000 Resto-mod, ‘18 Z900RS
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I can’t help you on compatibility, but the Zx12 uses a 6” rim already. Going with the Zx10 wheel is only going to save you weight without a gain in width.

Later, Doug
 

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I don’t know where you’re getting your info but, sorry; your source is incorrect. If you have a Zx12, you can confirm it.




Kawasaki parts fiche shows a 200/50-17 tire which is only appropriate on a 6.0” rim.

Later, Doug
 

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Discussion Starter · #8 ·
doug, i went out and read my zx12r rims, they say 17x 6.00, actual width was 6.125, cant say inside with tire mounted, so, lets try another direction, is there a kawasaki rim thats wider? zx14 appears to be 6inches as zx10. i have a 200/50/17 my wish was to flatten contact patch by moving beads apart, my original question that was lost in the discussion was the important part, how wide is the hub on other wheels, will they fit my control arm? anyone that can help id appreciate hearing from you, thanks
 

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THE OUTSIDE WIDTH IS 6 inches
Wrong again! I can guarantee you that if you dismount the tire and measure inside bead lip to inside bead lip it will be 6”. Not 5.5, not 6.125”, not 6.25” but 6.0”.

however, that not how you measure the rim, its bead to bead
You are correct there! Which is why I stated above.

As far as I know there are no high production true sportbikes that have wider than a 6.00” rim from the factory. Zx7P…6”, Zx10…6”, Zx12…6”, Zx14…6”, Busa…6”…etc.

If you want a flatter contact patch, go with either a drag specific tire (Dunlop Dragmax or Shinko Hookup) or run a narrower tire to spread the beads apart on a 6” rim.

Later, Doug
 

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Discussion Starter · #10 ·
im running a shinko, but thanks for trying, ill keep looking for a lower cost way to get what i want, if i had unlimited funds and could buy aftermarket parts and tires i wouldnt have asked for help, hakuna matata
 

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Discussion Starter · #11 ·
I think the zx10 04/05 has a 20mm axle so your zx12 swingarm won't hold it having a 25mm axle.
good point yorkie! i can always rely on you for good info!, but just to be devils advocate, there is more than one way to skin a cat! meaning, can the outside diameter of the bearings allow me to use different bearings> they are cheap, ill see if i can find out! thanks again!
 

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can the outside diameter of the bearings allow me to use different bearings> they are cheap, ill see if i can find out!
I’m sorry if I came across wrong, but you gave very little information upfront and didn’t bother to look at your own bike for useful information. Visit Partzilla, RonAyers, etc for free part diagrams. Kawasaki is really good about listing bearing numbers in their descriptions. Heck, sometimes the give you spacer lengths.

You should be able to find bearings with the same OD and correct ID. I did when I swapped a Ducati GT1000 wheels (25mm axle) into a Zrx1100 swingarm 20mm axle) and Zx11C forks (20mm axle). The bearings are 2mm wider than the OEM bearings. You’ll need to face the spacers down by 2mm each. Custom spacers with a 20mm ID will likely be needed anyways so that will be part of their design. should also replace the crush tube between the bearings, inside the hub, with one sized to fit the axle’s OD and the bearings’ inner races.



Later, Doug
 

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Zx12 rear wheel bearings
6205 bearing - 25x52x15

Zx10 rear wheel bearings
6204 bearing - 20x47x14

“conversion bearing” = 6005 Bearing - 25x47x12 <- Start there.

Later, Doug
 

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Discussion Starter · #15 ·
Zx12 rear wheel bearings
6205 bearing - 25x52x15

Zx10 rear wheel bearings
6204 bearing - 20x47x14

“conversion bearing” = 6005 Bearing - 25x47x12 <- Start there.

Later, Doug
 

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Discussion Starter · #16 ·
good job! i already looked up the stock bearings, osr zx10r conversion kit, has the bearings in it, sorry if i wasnt clear, shaving 4 pound is the same as i rwhp, also lighter wheels give more usefull torque, depending on brake rotor and sprocket use 3-5 pound weight savings! the kit is a little spendy, but another thing i found is the zx10 wheels use 4 isolators on drive hub and zx12 uses 5, so again, if i had money, just buy kit! ha ha, us poor guys trying to go cheap! thanks much for info! greatly appreciated, i also own a 2001 zrx as well, good to know axle info for thst one too hakuna matata
 

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Discussion Starter · #17 ·
Zx12 rear wheel bearings
6205 bearing - 25x52x15

Zx10 rear wheel bearings
6204 bearing - 20x47x14

“conversion bearing” = 6005 Bearing - 25x47x12 <- Start there.

Later, Doug
by the way, i owned a 84 gpz turbo in the 80s, and a 83 gpz non turbo in the ninties, i miss the turbo
 

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by the way, i owned a 84 gpz turbo in the 80s, and a 83 gpz non turbo in the ninties, i miss the turbo
I own both…kinda…it’s a ‘83 Zx750A with a ‘84 a Zx750E engine swap. I’ve done all the work minus machining down the Triumph rear axle to fit the Ducati wheel.



I have a 9x20 lathe and a 6x26 vertical mill. I am willing to help if you need it.

Later, Doug
 

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Discussion Starter · #20 ·
I own both…kinda…it’s a ‘83 Zx750A with a ‘84 a Zx750E engine swap. I’ve done all the work minus machining down the Triumph rear axle to fit the Ducati wheel.



I have a 9x20 lathe and a 6x26 vertical mill. I am willing to help if you need it.

Later, Doug
hey doug its bo, where do you live? im in white bear lk mn
 
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