Rear suspension

  • gordone
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20 Jan 2018 10:10 - 20 Jan 2018 10:13 #777490 by gordone
Rear suspension was created by gordone
I want to replace my existing Coni rear suspension on my 650 SR 81.
I have measure the length to be approx. 30cm..

What do I have to choice between, I want a modern look, black ish ?
What about bushing, I only need to make sure the bushing fit my existing bolts?

Is there big different in performance? more money you use, better driving handling ?
1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).

Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine
Last edit: 20 Jan 2018 10:13 by gordone.

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20 Jan 2018 10:37 #777493 by davido
Replied by davido on topic Rear suspension
'Koni' are back in business ,now rebranded as 'Ikon'.
www.ikonsuspension.com/
I went with YSS for my build
yss.co.th/index.php
www.kzrider.com/forum/11-projects/594313-csr1000-project-build
CB550 (1978)
CB500/4 (1972)*
KZ1000CSR (1981)
XT 600E (1999)
TDM900 (2003)

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20 Jan 2018 16:45 #777518 by TexasKZ
Replied by TexasKZ on topic Rear suspension
Check Hagon, too.
1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough

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  • gordone
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22 Jan 2018 01:40 #777555 by gordone
Replied by gordone on topic Rear suspension
Thank you for feedback.

Please see attached photo, these extra oil tank? is just a show of?
On my bike it will not have any effect?

I`m looking for suspension to looks cool :)

I have just take a quick look at Ikon and Hagon, will take a closer look.
Is there other brand I can look at?

What is the important thing? length? bushing size?
1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).

Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine
Attachments:

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  • bluej58
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22 Jan 2018 03:16 #777559 by bluej58
Replied by bluej58 on topic Rear suspension
www.restocycle.com/ikon-suspension-products
78 KZ1000 A2A

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22 Jan 2018 05:14 - 22 Jan 2018 05:15 #777562 by TexasKZ
Replied by TexasKZ on topic Rear suspension
The extra tank, as you call it, is a chamber for pressurized nitrogen. It helps to prevent the oil from frothing under severe usage.
The very best shocks you can get are Ohlins, but they are quite expensive. You might be able to adapt some used shocks from a ZRX 1100 or 1200. They have the nitrogen reservoir, and are rebuildable. You will need to compare measurements.
I don’t think Hagon makes that style. Perhaps YSS does.
1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough
Last edit: 22 Jan 2018 05:15 by TexasKZ.

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22 Jan 2018 05:55 #777564 by 650ed
Replied by 650ed on topic Rear suspension
Or.....

1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)

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  • gordone
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22 Jan 2018 06:52 #777567 by gordone
Replied by gordone on topic Rear suspension

650ed wrote: Or.....


haha fantastic :)
1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).

Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine

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22 Jan 2018 09:29 - 22 Jan 2018 09:34 #777576 by martin_csr
Replied by martin_csr on topic Rear suspension
and on a more serious note.

CafeRacer.net >>> Rebuilding RFY Cheap Shocks how-to topic with pictures.

Related. you have to be careful when machining or modifying cheap shocks. the bottom mount could be weakened. so the bottom mount could snap off, causing a serious motorcycle accident. I would be worried about that, even if they are un-modified.


....
1981 KZ650 Competition Sports and Road
Last edit: 22 Jan 2018 09:34 by martin_csr.

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  • gordone
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22 Jan 2018 10:22 #777579 by gordone
Replied by gordone on topic Rear suspension
I don`t plan to custom build my self :)
1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).

Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine

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  • gordone
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22 Jan 2018 12:05 #777586 by gordone
Replied by gordone on topic Rear suspension

davido wrote: 'Koni' are back in business ,now rebranded as 'Ikon'.
www.ikonsuspension.com/
I went with YSS for my build
yss.co.th/index.php


What YSS model have you used?
1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).

Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine

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  • gordone
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22 Jan 2018 12:29 #777590 by gordone
Replied by gordone on topic Rear suspension
Will I feel big difference between different model / brand ?
Gas ? without gas? etc... cheap / expensive?

What is the differences?

I`m not experienced into these :)
1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).

Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine

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