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Kz550 pivot shaft dimensions 15 Nov 2021 22:12 #857974

  • Sooper_arthur
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Hi, I'm looking to verify that 1980-81 kz550 rear axle is 15mm and I'm trying to find the length of it. If someone has one to measure... Or better yet sell, that would be greatly appreciated! 

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Kz550 pivot shaft dimensions 16 Nov 2021 06:20 #857983

  • martin_csr
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Howdy. Partzilla lists the castle nut as 16mm.  The axle part number is 41068-1086 & the cross-reference there at partzilla
says it was used on a bunch of 550/650/750 models, so you should be able to source one on EB.
Search eb by either part number or part name (KZ550 rear axle for example). 

ps: topic title kinda confusing. pivot shaft would be the swing arm or center stand I guess.

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Kz550 pivot shaft dimensions 16 Nov 2021 09:37 #857987

  • JR
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Yep same part # as many other bikes including the 1980 KZ750E1  as Martin said.

The shaft part of the bolt measures 29cm (or 11.5 inches). 30cm if you include the bolt head

There are a number of kz750 rear axles on ebay,com at the moment. When searching you only want the axle from 4 cylinder models

 
1980 kz750E1, Delkevic exhaust
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Kz550 pivot shaft dimensions 17 Nov 2021 06:02 #858003

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By JR:  ... When searching you only want the axle from 4 cylinder models.

This, with one exception being the 82 KZ750 CSR Twin. 
An earlier 750 Twin axle would be too big as these are 18mm.
The 83-84 750K Ltd Belt are 16mm but unknown length. 
Whatever you get, double-check the x-ref before purchase. no sense goofing on something so mundane.
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Kz550 pivot shaft dimensions 17 Nov 2021 17:22 #858017

  • Sooper_arthur
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Thank you for the responses.  I apologize for the title.  I'm actually planning on using the rear kz axle on the pivot shaft of the bike I'm building, must have been tired when I typed up the subject.   But to verify, it looks like the early 80s rear axle is 16mm? And not the 15mm that I require. 

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Kz550 pivot shaft dimensions 18 Nov 2021 06:05 #858025

  • martin_csr
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Okay.  I checked a few smaller models (250/305/440) but they're either 14mm or 16mm. I tried looking at some Hondas of the era, but the ones I saw were either 14mm or18mm.  14/16/18 might be a Japanese standard. guessing.

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