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Identify Forks

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rpeters
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Identify Forks

#1 PostAuthor: rpeters » Tue Jul 06, 2021 6:44 am

These forks were on a Z1R project bike I picked up. Don't think they are Z1R, can anyone identify them please as i need to sell them. The chrome is good, no pitting, but they need new seals and a brush up!...

Thanks

Rob
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Re: Identify Forks

#2 PostAuthor: warren3200gt » Tue Jul 06, 2021 9:32 am

If the stanchions are 36mm Rob I think they are z650 b1. Calipers forward mounted with mudguard stay mounts rear mounted.
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CAT3
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Re: Identify Forks

#3 PostAuthor: CAT3 » Tue Jul 06, 2021 9:48 am

They could also be Z900-A4 forks as they are also the same 36mm.
Mudguard stay mounts are not used on the A4's.
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Re: Identify Forks

#4 PostAuthor: rpeters » Tue Jul 06, 2021 11:47 am

Thanks Guys, seems z650 is a good bet!

Anyone on here interested in them?
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Re: Identify Forks

#5 PostAuthor: CAT3 » Tue Jul 06, 2021 1:03 pm

download/file.php?mode=view&id=21588
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Z900-A4 Forks
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Re: Identify Forks

#6 PostAuthor: ADRIAN H » Tue Jul 06, 2021 6:52 pm

rpeters wrote:Thanks Guys, seems z650 is a good bet!

Anyone on here interested in them?


they look like z900 forks. All z650's 1977-1983 calipers were to the rear of forks , which is the same side as the hole for mudguard stay. Hole for mudguard stay is a lot smaller as well.
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Re: Identify Forks

#7 PostAuthor: warren3200gt » Tue Jul 06, 2021 7:13 pm

Thats not correct Adrian. 77b1 650's were caliper in front of forks. I still have the one I bought new in 77. Stay hole is the same for both 650 & 900
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Re: Identify Forks

#8 PostAuthor: CAT3 » Tue Jul 06, 2021 8:55 pm

So, could it be that the original posters forks are from either a Z650 or A4, depending upon what internal springs are fitted ?
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rpeters
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Re: Identify Forks

#9 PostAuthor: rpeters » Wed Jul 07, 2021 6:34 am

I am not really inclined to take them apart and find out guys :lol: :lol:
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Re: Identify Forks

#10 PostAuthor: ADRIAN H » Wed Jul 07, 2021 6:13 pm

warren3200gt wrote:Thats not correct Adrian. 77b1 650's were caliper in front of forks. Stay hole is the same for both

Apologies for my error, I was wrong. :oops:
It's what I was told when looking at a Z650B1 for sale a few years ago.

Below is a picture of a pair of Z650 B1 forks on sale on ebay - which to my untrained eye the stay hole looks smaller ! What do you think.

https://www.ebay.com/itm/333819613603?h ... Sw2KVfx6hy
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Re: Identify Forks

#11 PostAuthor: ADRIAN H » Wed Jul 07, 2021 6:46 pm

Z650B1 - front forks have the same part no as Z900 and Z1000A1. Learned something today. :D
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Re: Identify Forks

#12 PostAuthor: warren3200gt » Wed Jul 07, 2021 6:47 pm

Its not smaller Ade, bit of dodgy pic and camera angle. Trust me I have both.
Cross posted :up
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Re: Identify Forks

#13 PostAuthor: ADRIAN H » Wed Jul 07, 2021 9:26 pm

warren3200gt wrote:Its not smaller Ade, bit of dodgy pic and camera angle. Trust me I have both.
Cross posted :up

No worries mate :D
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