1980 Z1R D3 Wheel Size

  • GrumpierGrunt
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1980 Z1R D3 Wheel Size

30 Aug 2025 07:57
#916571
This z1r d3 basket case really is full of surprises. I believe the PO or the PPO put on an Ltd front wheel. It’s 19x1.85 in the front and 18x2.15 in the rear. Can someone confirm the front and rear sizes?

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Re: 1980 Z1R D3 Wheel Size

30 Aug 2025 08:01
#916572
I think the front should be 19x2.15

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Re: 1980 Z1R D3 Wheel Size

30 Aug 2025 08:42
#916574
I think you´re right with the 19 x 2.15 wheels size.
( Early D1 models have 18 x 2.15 on the front,..and after some handling problems at high speed, Kawasaki changes the size up to 19 x 2.15!)
Greetings, Joe

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Re: 1980 Z1R D3 Wheel Size

30 Aug 2025 09:28
#916575
Thanks Joe! Yeah, I figured something was off when I noticed the fonts were different. Thanks for helping me take another step in setting this bike up right

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  • Nessism
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Re: 1980 Z1R D3 Wheel Size

30 Aug 2025 13:10 - 30 Aug 2025 13:12
#916585
Sorry, doubting Thomas here!  

The same part number wheel is used across many different models, and none of those, to my knowledge, use a 2.15 wheel.  I suspect the front is a common 1.85 x 19.  

Last edit: 30 Aug 2025 13:12 by Nessism.
The following user(s) said Thank You: MFP-Joe

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  • asphalt900
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Re: 1980 Z1R D3 Wheel Size

30 Aug 2025 13:17
#916587
Contraire Ed, earlier i sent a pic of one i have on that pile of junk KZ900 i couldn't give away. It's a 19 X 2.15 Kawasaki mag but haven't a clue where/what it came off?? 

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Re: 1980 Z1R D3 Wheel Size

30 Aug 2025 13:29
#916588
Contraire Ed, earlier i sent a pic of one i have on that pile of junk KZ900 i couldn't give away. It's a 19 X 2.15 Kawasaki mag but haven't a clue where/what it came off?? 

So, clay, are you suggesting that all those different model bikes, highlighted using the same PN wheel, also use a 19 x 2.15?  Hum.  I feel cheated.  My 750 has a 2.15 rear, but the front is 1.85.  It's odd for both wheels to be the same width.

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Re: 1980 Z1R D3 Wheel Size

30 Aug 2025 13:59
#916591
I do not know about the width of the wheels. The parts lists on the Kawasaki.com site indicate an 18 in tire is used on the D1 in front,and a 19 in tire is on the front for D3. I do find it of interest that there is no info on the size of the wheels?
www.kawasaki.com/en-us/owner-center/parts/144283/1978/KZ1000-D1
www.kawasaki.com/en-us/owner-center/parts/144332/1980/KZ1000-D3
1977 KZ650 B1
Pods and Denco header


OLD KAW OWNERS SMILE ALOT

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Re: 1980 Z1R D3 Wheel Size

Yesterday 09:00
#916617
Any D3 owners out there that could clarify?

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Re: 1980 Z1R D3 Wheel Size

Yesterday 09:19
#916618
 

Ed, you are the winner here. It is 19x1.85. I looked at a more pristine example of the D3 and the wheel is stamped 19x1.85

 

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Re: 1980 Z1R D3 Wheel Size

Yesterday 11:17
#916625

Ed, you are the winner here. It is 19x1.85. I looked at a more pristine example of the D3 and the wheel is stamped 19x1.85


 

I accept the rubber chicken award, in honor of all KZR members worldwide!  It's a great honor!

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Re: 1980 Z1R D3 Wheel Size

Yesterday 11:47
#916628
welll done, awesome award 👍
KZ650B1 frame number 225

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