3" lowering shims install?

  • Serpent7
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18 Mar 2014 05:56 #625624 by Serpent7
Replied by Serpent7 on topic 3" lowering shims install?

P21 wrote: the back end of bikes not going to like that not on a shaftie
but then again live and learn
good luck


Thanks for the heads up. I was told my bike wouldn't like 11.5" rear aftermarket shocks from a HD Sportster, and its never rode better! Now it's time for the front. I was thinking about getting, 10.5", or even 10" rear, aftermarket shocks after I lower the front 3". If it doesn't work out, then I'll send the forks off to a machine shop. Its going to be 3" lower in the front, regardless. I think you guys will like my finished project!

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18 Mar 2014 05:57 #625625 by Serpent7
Replied by Serpent7 on topic 3" lowering shims install?

4TheKZ1000 wrote: You can get 1 inch by loosing the triple tree bolts and sliding forks up on the tree 1 inch.

I installed 2 inch spacers on mine for a total of three inches.

I Ended up going to two, as the forks felt to harsh.


If the ride is too harsh, then I'll just cut the fork springs...

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18 Mar 2014 09:41 #625650 by zukdave
Replied by zukdave on topic 3" lowering shims install?
2" in the back and 3" in the front your header's gonna hate you.
On mine with 10" strut's and the fork's slid to the bar's I was hittin
the header a lot that's why I did the sidewinder header.

1980 KZ650 F1
ZX750A1 motor.
Wiseco 810cc kit.
Zukiworks racing ported head.
VM 29 smooth bore's.
Dyna 2000 Ign. w/Dyna mini coil's
APE cylinder stud's and nut's.
APE valve spring's.
APE Track King clutch.
V/H KZ1000 sidewinder.
3.5x18 laced to a KZ1000 disk hub.
150/60/18 Shinko 006 Podium.
63" wheel base.
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18 Mar 2014 14:31 #625673 by DesertKZ
Replied by DesertKZ on topic 3" lowering shims install?
I removed the upper springs on my Shaftie and replaced it with some spacers, forgot how long. I just played with it until I liked the height. Bike rides and handles fine and I'll do 150 mile trips no prob on them.

1979 KZ1000 Shaft
1979 CX500C
1975 GT750 Smoker
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18 Mar 2014 14:45 - 18 Mar 2014 14:46 #625676 by slayer61
Replied by slayer61 on topic 3" lowering shims install?

Serpent7 wrote:

4TheKZ1000 wrote: You can get 1 inch by loosing the triple tree bolts and sliding forks up on the tree 1 inch.

I installed 2 inch spacers on mine for a total of three inches.

I Ended up going to two, as the forks felt to harsh.


If the ride is too harsh, then I'll just cut the fork springs...[/quote]

It has been my experience that if you shorten the spring, it gets firmer, not softer ;) just sayin'


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
Last edit: 18 Mar 2014 14:46 by slayer61.

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18 Mar 2014 20:35 - 18 Mar 2014 20:37 #625711 by gearheadmm
Replied by gearheadmm on topic 3" lowering shims install?
Two inch is good for the street. But I hate soft front ends.
Three drag only. Too low
Just remember that if you install 2' spacers your not gonna get lowered 2".
Your gonna get 2" of PRELOAD added to the spring stack.

In stead of spacers I have used 6' sections of a dual rate spring pack.
Soft for 1"of travel then hard.

As you increase the preload you stiffen and lessen travel.

And yes as you increase preload it will get harder to put together.
The easiest way to do those is this...
Place fork on a floor jack next to a wall and mark top of fork on wall.
Now build an upside down shelf bracket to put the top of the fork on by jacking up.
I used 2 x 4s. Screw it temporarily to the wall real good.
Jack up the fork to compress it on the bracket and loosen the top nut while compressed.
Reassemble the same way.

Attachment Copyofearnhardt-footer.jpg not found



You will have to completely disassemble to do this as the spacer goes on the bottom (rebound) spring.

You can always shorten the spacers if needed.
I've seen guys use PVC pipe for this though I wouldn't.

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Last edit: 18 Mar 2014 20:37 by gearheadmm.
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20 Mar 2014 07:49 #625883 by Serpent7
Replied by Serpent7 on topic 3" lowering shims install?

zukdave wrote: 2" in the back and 3" in the front your header's gonna hate you.
On mine with 10" strut's and the fork's slid to the bar's I was hittin
the header a lot that's why I did the sidewinder header.


I have a sidewinder header installed...

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14 Volkswagen Touareg X
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20 Mar 2014 07:54 #625884 by Serpent7
Replied by Serpent7 on topic 3" lowering shims install?

gearheadmm wrote: Two inch is good for the street. But I hate soft front ends.
Three drag only. Too low
Just remember that if you install 2' spacers your not gonna get lowered 2".
Your gonna get 2" of PRELOAD added to the spring stack.

In stead of spacers I have used 6' sections of a dual rate spring pack.
Soft for 1"of travel then hard.

As you increase the preload you stiffen and lessen travel.

And yes as you increase preload it will get harder to put together.
The easiest way to do those is this...
Place fork on a floor jack next to a wall and mark top of fork on wall.
Now build an upside down shelf bracket to put the top of the fork on by jacking up.
I used 2 x 4s. Screw it temporarily to the wall real good.
Jack up the fork to compress it on the bracket and loosen the top nut while compressed.
Reassemble the same way.


Attachment Copyofearnhardt-footer.jpg not found



You will have to completely disassemble to do this as the spacer goes on the bottom (rebound) spring.

You can always shorten the spacers if needed.
I've seen guys use PVC pipe for this though I wouldn't.


I like this idea…. Hmmmmm. Going to try my 3" spacers first. If they don't work to my liking, then I'll try this!

19 Audi Q5
14 Volkswagen Touareg X
97 Honda Shadow Spirit
79 Kawasaki KZ1000 st
79 Volkswagen Transporter
73 Volkswagen Thing

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20 Mar 2014 20:34 #625968 by zukdave
Replied by zukdave on topic 3" lowering shims install?
The spacer kit he's talking about go on the damper rod's
and stop the fork from fully extending shortening the fork..

As for spring's they'll be three inch to long so cut two inch off them
adding one inch of preload. to stiffin them.

1980 KZ650 F1
ZX750A1 motor.
Wiseco 810cc kit.
Zukiworks racing ported head.
VM 29 smooth bore's.
Dyna 2000 Ign. w/Dyna mini coil's
APE cylinder stud's and nut's.
APE valve spring's.
APE Track King clutch.
V/H KZ1000 sidewinder.
3.5x18 laced to a KZ1000 disk hub.
150/60/18 Shinko 006 Podium.
63" wheel base.
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21 Mar 2014 03:27 - 21 Mar 2014 03:29 #625994 by ed spangler
Replied by ed spangler on topic 3" lowering shims install?

Serpent7 wrote:

P21 wrote: the back end of bikes not going to like that not on a shaftie
but then again live and learn
good luck


Thanks for the heads up. I was told my bike wouldn't like 11.5" rear aftermarket shocks from a HD Sportster, and its never rode better! Now it's time for the front. I was thinking about getting, 10.5", or even 10" rear, aftermarket shocks after I lower the front 3". If it doesn't work out, then I'll send the forks off to a machine shop. Its going to be 3" lower in the front, regardless. I think you guys will like my finished project!



I would Like to see pics of this work in progress!!
So, can you post pics of the Rear shocks you used? Is the rear rim/ tire stock? or......... did you use a 16" rear rime / tire?
Sounds interesting, and Look forward to ride report after mods!
Just Curious, thats me!
Regards
Ed

Have 1975 Kawasaki Z1-B & 2003 Harley Davidson Heritage Softail Classic
Had Hondas, Harleys and many ,many Z Series Kaws both Std. & LTD's
Last edit: 21 Mar 2014 03:29 by ed spangler.
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24 Mar 2014 13:18 #626384 by Serpent7
Replied by Serpent7 on topic 3" lowering shims install?

zukdave wrote: The spacer kit he's talking about go on the damper rod's
and stop the fork from fully extending shortening the fork..

As for spring's they'll be three inch to long so cut two inch off them
adding one inch of preload. to stiffin them.


Thanks ZukDave! Sounds like you have experience with this lowering kit. What am I up against as far as installing it? I tried to take my left, and right engine covers off last night and was not too successful… Any insight you could give would help greatly.

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24 Mar 2014 13:23 #626385 by Serpent7
Replied by Serpent7 on topic 3" lowering shims install?

ed spangler wrote:

Serpent7 wrote:

P21 wrote: the back end of bikes not going to like that not on a shaftie
but then again live and learn
good luck


Thanks for the heads up. I was told my bike wouldn't like 11.5" rear aftermarket shocks from a HD Sportster, and its never rode better! Now it's time for the front. I was thinking about getting, 10.5", or even 10" rear, aftermarket shocks after I lower the front 3". If it doesn't work out, then I'll send the forks off to a machine shop. Its going to be 3" lower in the front, regardless. I think you guys will like my finished project!


When I get home, I'll dig up some info. on my purchase. I'll snap some pics too and post.


I would Like to see pics of this work in progress!!
So, can you post pics of the Rear shocks you used? Is the rear rim/ tire stock? or......... did you use a 16" rear rime / tire?
Sounds interesting, and Look forward to ride report after mods!
Just Curious, thats me!
Regards
Ed


19 Audi Q5
14 Volkswagen Touareg X
97 Honda Shadow Spirit
79 Kawasaki KZ1000 st
79 Volkswagen Transporter
73 Volkswagen Thing

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