ZRX shocks on my kz650?

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15 Sep 2011 10:59 #477012 by bearshawk
ZRX shocks on my kz650? was created by bearshawk
hey guys is this possible? i have a lead on a good set nearby and thought it would be a good improvement, i am 230# and i often ride two up i figured even with the inch+ longer shock it will be a better ride for me.

has anyone else done this mod?

1978 kz650 sr- long time project/first bike mostly gone
1979 kz659 sr- new acquisition NEXT project GONE

Both 650s combined to make one great bike! with a new powerplant

it is a 79 frame, 78 front end, both 78 wheels and brakes, 78 body work and a 80' 750-4 motor with gpz 750 cams and a kerker and...

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15 Sep 2011 12:05 #477030 by Patton
Replied by Patton on topic ZRX shocks on my kz650?

bearshawk wrote: hey guys is this possible? i have a lead on a good set nearby and thought it would be a good improvement, i am 230# and i often ride two up i figured even with the inch+ longer shock it will be a better ride for me.

has anyone else done this mod?

Might simply raise the rear end without adding any additional suspension travel. And which usually quickens the steering (which might aggravate head shaking tendency).

The spring rate may be a more important consideration.

Sometimes it helps to equally increase the pre-load on both shock springs.

Good Fortune! :)

1973 Z1
KZ900 LTD

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15 Sep 2011 12:23 #477035 by bearshawk
Replied by bearshawk on topic ZRX shocks on my kz650?

Patton wrote:

bearshawk wrote: hey guys is this possible? i have a lead on a good set nearby and thought it would be a good improvement, i am 230# and i often ride two up i figured even with the inch+ longer shock it will be a better ride for me.

has anyone else done this mod?

Might simply raise the rear end without adding any additional suspension travel. And which usually quickens the steering (which might aggravate head shaking tendency).

The spring rate may be a more important consideration.

Sometimes it helps to equally increase the pre-load on both shock springs.

Good Fortune! :)


so if im looking for aftermarket shocks its probably not the best route to go?

i noticed yesterday while looking at my bike that the forks are about 3/4 inch ABOVE the upper triple. i looked in the manual and its supposed to be JUST BELOW the upper triple...this is how i got the bike and i assumed this was how it was supposed to be, should i raise it back up?

1978 kz650 sr- long time project/first bike mostly gone
1979 kz659 sr- new acquisition NEXT project GONE

Both 650s combined to make one great bike! with a new powerplant

it is a 79 frame, 78 front end, both 78 wheels and brakes, 78 body work and a 80' 750-4 motor with gpz 750 cams and a kerker and...

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  • mark1122
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15 Sep 2011 19:11 #477101 by mark1122
Replied by mark1122 on topic ZRX shocks on my kz650?
buy haveing the forks above the top tree, it makes it steer quicker (easier.) put them where u like the steering action best. the down side to having the forks above the trees is that u loose some ground clearance.
u could give the zrx shock a try . if u are not happy u can get your money back through ebay.
i have them on my kz1000.they are about 1" longer than my stock shocks.
since they are 1 inch or more in your case ?, longer, i would put the forks back to the stock position.

76 KZ, frame gusset work,1200CC.Ported by Larry Cavanaugh, 1.5mm.over intakes, Carron Pipe, ZRX12 rear end, and seat,96zx9 front end.
01 CBR600F4i Track bike.
Cobourg, Ont. Can.

~ ~ ~_@
~ ~ _- \,
~ (k) / (z)

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15 Sep 2011 22:17 #477148 by Nebr_Rex
Replied by Nebr_Rex on topic ZRX shocks on my kz650?
ZRX shocks will be way to long and the spring way stiff for a 650.
I will measure both my SR and ZRX tomorrow morning and report back on the length.
ZRX should be about 14 1/4 to 1/2 in. and SR 12 1/2 to 13 in.

2002 ZRX1200R
81 GPz1100
79 KZ1000st daily ride
79 KZ1000mk2 prodject
78 KZ650sr
78 KZ650b
81 KZ750e
80 KZ750ltd
77 KZ400/440 cafe project
76 KZ400/440 Fuel Injected

www.dotheton.com/forum/index.php?topic=39120.0


.

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16 Sep 2011 19:05 #477330 by steell
Replied by steell on topic ZRX shocks on my kz650?

Nebr_Rex wrote: ZRX shocks will be way to long and the spring way stiff for a 650.
I will measure both my SR and ZRX tomorrow morning and report back on the length.
ZRX should be about 14 1/4 to 1/2 in. and SR 12 1/2 to 13 in.


Yep, so you can just ship them to me and I'll take them off your hands :P


By the way, my 750 twin had 12.5" shocks on it stock, and now does just fine with 14.75" Koni shocks.

Figured it was cheaper to convert to monoshock on my current 750 twin project, than to buy used ZRX shocks.

KD9JUR

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16 Sep 2011 21:35 #477358 by Nebr_Rex
Replied by Nebr_Rex on topic ZRX shocks on my kz650?
Stock SR = 12.75
ZRX ====== 14.25

2002 ZRX1200R
81 GPz1100
79 KZ1000st daily ride
79 KZ1000mk2 prodject
78 KZ650sr
78 KZ650b
81 KZ750e
80 KZ750ltd
77 KZ400/440 cafe project
76 KZ400/440 Fuel Injected

www.dotheton.com/forum/index.php?topic=39120.0


.

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17 Sep 2011 03:54 #477449 by steell
Replied by steell on topic ZRX shocks on my kz650?
Weighed a 79 KZ650 SR at 480 lbs with no fuel and 4 into 1.
What's a ZRX weigh?

KD9JUR

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17 Sep 2011 07:08 #477452 by Nebr_Rex
Replied by Nebr_Rex on topic ZRX shocks on my kz650?
#540

2002 ZRX1200R
81 GPz1100
79 KZ1000st daily ride
79 KZ1000mk2 prodject
78 KZ650sr
78 KZ650b
81 KZ750e
80 KZ750ltd
77 KZ400/440 cafe project
76 KZ400/440 Fuel Injected

www.dotheton.com/forum/index.php?topic=39120.0


.

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17 Sep 2011 09:43 #477458 by 650ed
Replied by 650ed on topic ZRX shocks on my kz650?
Contact Dave Quinn (see link below). He will set up a pair of Hagon shocks specifically for your weight (including the 2-up factor) riding style, accessories, etc., and he does this VERY well. I bought shocks from him a couple years ago and still love them; others have had the same experience. They are top quality shocks that come in a variety of styles, and they have stainless steel bodies. I can't say enough good stuff about them; they're great. Ed

davequinnmotorcycles.com/cgi-bin/webc.cg...GON_TWIN_SHOCKS.html

1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
The following user(s) said Thank You: MadMac74

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10 Nov 2011 23:23 #487976 by Toonces
Replied by Toonces on topic ZRX shocks on my kz650?
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