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Enduro Suspension Tuning & maintenance of Enduro forks, shocks, etc


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  #61  
Old 11-10-2018, 05:13 PM
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Jakobi Jakobi is offline
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The Marzocchi PFP forks run a load of preload on the ICS spring, and then the PFP allows you to wind on even more.

I prefer the stock ones with a little free play. It's not an issue that the damper rod doesn't extend all the way back on it's own. You can still pull it out the last bit by hand and it should extend smooth with damping. Once installed you still have the outer spring keeping it at full extension.

Allows the first bit of travel to cavitate a bit and then the pressure ramps up. I don't think this is a bad thing for a trail setup. End of the day it's just another variable.


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  #62  
Old 11-10-2018, 06:17 PM
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Zman Zman is offline
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Thank you for the input. I took it for a quick spin and it feels better but I still need to go for a few more rides before I put it away for the year.
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  #63  
Old 11-14-2018, 06:11 AM
Thompo Thompo is offline
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I finally got my forks close to working how I believe they should.

Shims were
6x 32x0.1
22
6x 32 ->16x0.1
14x0.3
14x0.3
Flipped bleed stack

After reading how you got on with the 12mm clamp I looked at my stack and had a 14x0.1 and 11x0.3 in my bleed stack so I swapped a few things around and ended up with.

6x32x0.1
22
6x 32 -> 16x0.1
14x0.1
11x0.3
14x0.3
Flipped Bleed stack

So effectively now have an 11mm clamp, coupled with 0.48 springs and raising forks through the clamps 10mm (lowered front) it finally feels better than the sticky marzocchi 45s they replaced.

My thoughts, i think my 06/07 YZ250f forks are a bit longer than the marzocchis. This was putting my weight back and slackening head angle, making the forks less active/harsh and leaving the front vague.

Would like a little more small bump/trail trash compliance. Was out at a place recently, quite rocky all 2nd, 3rd gear tight tracks (no jumps), didn't use the last 3" of travel.

Reb/Mid stock but
0.3 float in 1 leg and 0.4 in the other.

Tempted to try 0.4 float in both legs and depending on how that goes maybe play with the ICS spring.
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  #64  
Old 11-14-2018, 06:38 AM
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Zman Zman is offline
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How much preload do you have on the main springs?
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  #65  
Old 11-15-2018, 03:30 AM
Thompo Thompo is offline
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Im running 465mm 0.48 springs from my KTM 950adv Preload is 3mm.
Standard 0.44/4mm felt very harsh with my 105kg on them.

I removed the KYB spring perch stops and made some simple tubes (rather than cut new grooves) to support the spring perches, to allow me to try some different springs I have in various lengths.
This will also let me play with preload quite easily, don't want to go much less to save things rattling around lol.

Have some 0.50 ill try next but they are 470mm from newer kyb so just need a couple of shorter tubes to keep preload to a minimum.

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Last edited by Thompo; 11-15-2018 at 06:55 AM.
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  #66  
Old 02-16-2019, 03:12 PM
motopsycho87 motopsycho87 is offline
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So far on my ec300 and rmz450 I've found the best thing to do is have a load of face shins and a small clamp.

On my kyb sss the previous owner had "flipped" the bleed (low speed compression) stack so it was bypassed, this is disgusting, unless you are riding at a toddler's pace through rock gardens it will make you use all your suspension too soon and make it too harsh for any high speed bumps you encounter. So anyway, I flipped mine back and stole an 11.26 to use as the clamp, along with 22x 32x11 face shims, she follows the track well but gives when you hit anything sharp.
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  #67  
Old 02-17-2019, 08:39 AM
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Nice idea about the preload spacers!
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  #68  
Old 02-10-2020, 12:26 PM
Hooligan Hooligan is offline
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I think the forum needs a dedicated section for KYB suspension.
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