KZR's Bikes of the Month for 2024

Zrx swinging arm

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06 Sep 2022 11:19 #873459 by DerZed
Zrx swinging arm was created by DerZed
Hi i have a z1 rear wheel with standard hub with 5.75inch rim will zrx1200 swinging arm fit in frame thanks 

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  • slayer61
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  • KZR FLAG RELAY CARRIER #62
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07 Sep 2022 09:03 #873505 by slayer61
Replied by slayer61 on topic Zrx swinging arm
Get out yer tape measure or use the search function right here on KZR.

BTW, Welcome to KZR. 
Don't be ridiculous! It's only a flesh wound!

[strike]Wife's little bike... 1984 GPZ 550 Kerker and DynaJet stage I kit[/strike]
Wife's BIG bike......[strike] 1981 GPZ 1100 Kerker and [strike]factory FI[/strike] Mikuni RS34s W/ K&N pods[/strike] SOLD

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  • Scirocco
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  • Never change a running system
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07 Sep 2022 12:28 #873516 by Scirocco
Replied by Scirocco on topic Zrx swinging arm
5.75 inch sound like an Akront wheel (5.75 x 18).
Your frame to swing arm pivot width is 235 mm (Z1, KZ900/1000).
The ZRX swingarm pivot to frame width is 245 mm, so you have to do some machinig/mods to fit/center the wheel and swingarm.
My 1975 Z 1 B 900 Project

www.kzrider.com/forum/11-projects/605133...ears-deep-sleep-mode

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08 Sep 2022 02:21 - 08 Sep 2022 17:41 #873544 by DerZed
Replied by DerZed on topic Zrx swinging arm
[img
 thanks for your reply. Do I take 5mm off both sides of inner frame as wheel is offset to let chain pass tyre yes it’s an Akron’s rim kind regards DerZed 
Last edit: 08 Sep 2022 17:41 by Street Fighter LTD.

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  • kzstreetfighter71
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  • Atlantic West Coast
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08 Sep 2022 23:39 - 08 Sep 2022 23:40 #873591 by kzstreetfighter71
Replied by kzstreetfighter71 on topic Zrx swinging arm
The smart money would be on a modification to the swingarm not the frame, if things need to be altered after the fact you only have one frame and the are multiple swingarms out there and yes, offsetting sprockets will need to be done.
06 Gsf 1200 bandit, 08 Triumph tiger 1010
05 Yam xv1700 , 02 Hon shadow 1100
1975 Z1 (currently working on)
1977 Z1000 ( running and in storage)
1978 Z1000 (currently working on)
1978 Z1r "skinny tank" (currently working on)
1978 Z1r "fat tank (gathering parts)
1979 z1000st (currently working on)
Last edit: 08 Sep 2022 23:40 by kzstreetfighter71.

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  • Scirocco
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  • Never change a running system
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09 Sep 2022 12:05 #873613 by Scirocco
Replied by Scirocco on topic Zrx swinging arm
You need a 10 mm offset front sprocket and a 10 mm spacer ring on the rear sprocket hub.

 
My 1975 Z 1 B 900 Project

www.kzrider.com/forum/11-projects/605133...ears-deep-sleep-mode
The following user(s) said Thank You: kzstreetfighter71

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10 Sep 2022 03:42 #873637 by DerZed
Replied by DerZed on topic Zrx swinging arm
Hi I haven’t bought a swinging arm yet could you please advise on best swinging arm for z900 frame with 5.75 inch rear wheel rim thanks kind regards DerZed
[img
 thanks for your reply. Do I take 5mm off both sides of inner frame as wheel is offset to let chain pass tyre yes it’s an Akron’s rim kind regards DerZed 

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10 Sep 2022 03:47 #873638 by DerZed
Replied by DerZed on topic Zrx swinging arm
Hi I haven’t bought a swinging arm yet could you please advise on best swinging arm for z900 frame with 5.75 inch rear rim thanks kind regards DerZed 

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  • Scirocco
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10 Sep 2022 15:20 - 10 Sep 2022 15:21 #873676 by Scirocco
Replied by Scirocco on topic Zrx swinging arm
A Zephyr 750/1100 or ZRX 400 swingarm is a good starting point.

 
 

www.caferacer-forum.de/viewtopic.php?t=1...526dde1ed3faa7342ba4

vimeo.com/348065800

 
My 1975 Z 1 B 900 Project

www.kzrider.com/forum/11-projects/605133...ears-deep-sleep-mode
Last edit: 10 Sep 2022 15:21 by Scirocco.

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11 Sep 2022 03:18 #873692 by DerZed
Replied by DerZed on topic Zrx swinging arm
Hi I had look on eBay none of afore mentioned swinging arms available  will any other arms fit thanks kind regards DerZed 

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11 Sep 2022 08:56 #873711 by DerZed
Replied by DerZed on topic Zrx swinging arm
Has anyone used gsx1400 as pivot point is 236mm in length thanks kind regards DerZed

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11 Sep 2022 09:07 #873713 by Mikaw
Replied by Mikaw on topic Zrx swinging arm
PDM custom fabrication sells a ZRX style swingarm. He advertises on this forum
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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