What do fork pressure springs do?

Tokyo_Tiddler
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Tokyo_Tiddler
Edited Date/Time 2/17/2015 1:14am
Factory Connection suspension sells different rate fork pressure springs. What do they do/ how do they work?

They also sell different rate shock high speed compression adjuster springs. What do they do/ how do they work? Gimmicks?

I am asking because it is not clear if I need them or how I would benefit from changing them in a 2012 CRF450. How would you have any idea what rate you need, if you cant identify a problem like you would with the wrong rate main fork spring being too hard or soft.

thx,
mike
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sandman768
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sandman768 2/15/2015 5:48am
2/15/2015 5:48am
I use F/C for all my bikes, just call them & discuss what you want to do, the have setups for everyone. The good thing with F/C is, if you dont like the setup, they will revalve again for free. I had my 13 crf 450 forks revalved 2 times before I felt they were working good for me. Your weight, skill level & terrain where you will ride will determine the setup. with that said, I did put lighter pressure springs in my 08 crf 450 & it did help ease harshness on square edged hits.
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keeptwostrokesalive 2/15/2015 12:07pm
2/15/2015 12:07pm
I believe they help with the plushness of the initial stroke, but I could be wrong
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Riesenberg448 2/16/2015 1:07pm
2/16/2015 1:07pm
They prevent cavitation and affect plushness on braking and square edge bumps. Pressure spring rates should be balanced with your valving.

Here is a chart with recommended rates as well.

Tokyo_Tiddler
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Tokyo_Tiddler 2/16/2015 4:35pm
2/16/2015 4:35pm
Thanks Jeremy!

Anyone know what the pressure spring rate is on a stock 2012 CRF450?

mike

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slipdog
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slipdog 2/16/2015 6:09pm
2/16/2015 6:09pm
2.0kg
ratonmacias
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ratonmacias 2/20/2025 9:19pm
2/20/2025 9:19pm
Riesenberg448 wrote:
They prevent cavitation and affect plushness on braking and square edge bumps. Pressure spring rates should be balanced with your valving. [url=http://www.racetech.com/page/title/FRPS%20Fork%20Pressure%20Springs]Here is a chart[/url] with...
They prevent cavitation and affect plushness on braking and square edge bumps. Pressure spring rates should be balanced with your valving.

Here is a chart with recommended rates as well.

What pressure spring rate would You recommend for a 2023 yz 125. 160 pound intermidiate gncc rider?

1
Riesenberg448 2/21/2025 5:02am
2/21/2025 5:02am
Riesenberg448 wrote:
They prevent cavitation and affect plushness on braking and square edge bumps. Pressure spring rates should be balanced with your valving. [url=http://www.racetech.com/page/title/FRPS%20Fork%20Pressure%20Springs]Here is a chart[/url] with...
They prevent cavitation and affect plushness on braking and square edge bumps. Pressure spring rates should be balanced with your valving.

Here is a chart with recommended rates as well.

ratonmacias wrote:

What pressure spring rate would You recommend for a 2023 yz 125. 160 pound intermidiate gncc rider?

You can always contact tech@racetech.com or sales@racetech.com for specific applications/setup recommendations.

I'm just the marketing/high five and handshake guy.  I don't want to recommend something wrong Smile

ratonmacias
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ratonmacias 2/21/2025 7:08pm
2/21/2025 7:08pm
Riesenberg448 wrote:
They prevent cavitation and affect plushness on braking and square edge bumps. Pressure spring rates should be balanced with your valving. [url=http://www.racetech.com/page/title/FRPS%20Fork%20Pressure%20Springs]Here is a chart[/url] with...
They prevent cavitation and affect plushness on braking and square edge bumps. Pressure spring rates should be balanced with your valving.

Here is a chart with recommended rates as well.

ratonmacias wrote:

What pressure spring rate would You recommend for a 2023 yz 125. 160 pound intermidiate gncc rider?

Riesenberg448 wrote:

You can always contact tech@racetech.com or sales@racetech.com for specific applications/setup recommendations.

I'm just the marketing/high five and handshake guy.  I don't want to recommend something wrong Smile

Thanks i Will.

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