Z1-900 front forks on a 78 KZ1000

  • Wheelhop
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Z1-900 front forks on a 78 KZ1000

22 Feb 2023 17:52
#880650
Guys,
I will be installing a set of Z1-900 front forks on my 78 KZ1000.   Also would like to install a dual disc brake setup while I am doing this. 
Here are a few questions:
1) Can I still use the 78 KZ1000 wheel with 4-bolt discs?  Will probably use repo Z1 Calipers (2).
2) I will also need Z1 caliper brackets (L and R)
3) Can I use the 78 KZ front axle?
4) I know I will need a dual splitter for the brake hoses and possibly a larger  front master cylinder
5) is a different spacer(s) required on the front axle?
6) anything else I am forgetting?  
Thanks in advance !
1978 KZ 1000B (73 tribute)
1977 KZ1000 project
1976 KZ 900
1976 KV 75
1976 Honda Elsinore MT250
1974 Z1 900 project
1971 Honda CT70
2000 ZRX 1100

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  • Moose1800
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Re: Z1-900 front forks on a 78 KZ1000

23 Feb 2023 08:36
#880677
Wheelhop I have some of the parts you may need, splitter, calipers and brackets, brake discs all from a 79 LTD.
I thought you bought both caliper brackets from the guy in Louisville?  

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  • Mikaw
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Re: Z1-900 front forks on a 78 KZ1000

23 Feb 2023 08:47
#880682
I have both forks. I’ll start exploring.
1976 KZ 900 A4 kzrider.com/forum/11-projects/613548-1976-kz-900-a4
1976 KZ 900 B1 LTD
1978 KZ 1000 B2 LTD
1980 KZ 750 E1
Kowledge Speaks, But Wisdom Listens.
Jimi Hendrix.

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  • hardrockminer
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Re: Z1-900 front forks on a 78 KZ1000

23 Feb 2023 15:19
#880690
I have a Z1 and an 80 KZ1000.  Here's what I know.

Z1 forks will fit the KZ1000 triple tree.  The wheel attaches to the forks in a similar fashion but I'm not sure if the brake calipers will match a 78 wheel disc.  The Z1 disc is a 6 bolt.  The calipers would fit the discs if you used a Z1 front wheel.  I think they would also fit a KZ1000 front wheel too, but I'm not 100% sure.  I know that the KZ900 front wheel is identical to a KZ1000 front wheel and that the wheel internals are different than a Z1.  And of course the disc mount is 6 bolt.
I have several restored bikes along with a 2006 Goldwing with a sidecar. My wife has a 2019 Suzuki DR 650 for on and off road.

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  • Wheelhop
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Re: Z1-900 front forks on a 78 KZ1000

23 Feb 2023 17:12
#880700
Wheelhop I have some of the parts you may need, splitter, calipers and brackets, brake discs all from a 79 LTD.
I thought you bought both caliper brackets from the guy in Louisville?  
The caliper brackets I bought in Louisville are left and right for a 76 and up.KZ..  The bolt spacing that the caliper brackets attach to is different on Z1 forks vs. KZ forks. 
I want to use Z1 forks, Z1 calipers.   
1978 KZ 1000B (73 tribute)
1977 KZ1000 project
1976 KZ 900
1976 KV 75
1976 Honda Elsinore MT250
1974 Z1 900 project
1971 Honda CT70
2000 ZRX 1100

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  • Moose1800
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Re: Z1-900 front forks on a 78 KZ1000

24 Feb 2023 09:17 - 24 Feb 2023 09:18
#880715
Wheelhop here's some reading about the swap you want to do.

www.kzrider.com/forum/5-chassis/435900-d...sc-options-on-z1-900
Last edit: 24 Feb 2023 09:18 by Moose1800.

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