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KYB Shock - How to release nitrogen?

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I have a 2012 KX450F (KYB suspension). I am going to change the shock oil but don't know how to release the nitrogen from the bladder? :thumbsup: Do I need a special needle valve or something?

I've only ever worked on shocks that have a schrader valve on the bottom of the bladder.

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Never mind. It took a few hours of looking but I found the answer.

By the way, we have a replacement cap that has a valve built into it. The valve is recessed. We also use these on the YZs and WRs to keep the heat from the exhaust away from the shock.

$38

Fits:

09-12 KX450F

06-09 YZ450F

06-12 YZ125/250/250F

07-11 WR250F/450F

KYB_SHOCK_N2_CAP-600x555.jpg

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There is a small hole in the center of the cap.

You have to insert a needle to let the pressure of and refill it after servicing.

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Is it like the WP needle for KTM's?

Or a special KYB tool, because I have never seen this before (only worked on CRF showa)

Should I rather buy an aftermarket bladder cap with a schrader valve?

Thanks!

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yes like the setup ktms use on the forks

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Even if you buy the new cap you will need to release the pressure. You can use a hypo needle to release (not fill) pressure if you don't have a proper one.

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