High Pressure Gauge and Filler for Bump Stops

[TXRaptor]

Any recommendations for a good high pressure gauge and filler for the Fox 2.5" bump stops? I have a large air compressor, but no way of checking or filling the bump stops since they are so small.

The shop that installed them had a gauge, but I did not get the name or model.

 

[vr4henry]

I think Powertank sells a kit

 

[J DAMAGE]

Any recommendations for a good high pressure gauge and filler for the Fox 2.5" bump stops? I have a large air compressor, but no way of checking or filling the bump stops since they are so small.

The shop that installed them had a gauge, but I did not get the name or model.

You need to purchase yourself the same fill chuck they use for charging shocks, no lose 556 schrader chuck with 300psi gauge. RPG makes a nice one.

https://www.rpgoffroad.com/product/air-control-valve-assembly/

or buy the pieces and make it yourself.

 

[ogdobber]

Fox float pump
https://www.worldwidecyclery.com/pr...h-pressure-shock-pump-with-bleed-valve-300psi


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[Huck]

They should also be filled with nitrogen. Not shop air


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[TXRaptor]

They should also be filled with nitrogen. Not shop air

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I know why they fill tires with nitrogen, but why does it matter with a steel shock?

 

[TXRaptor]

You need to purchase yourself the same fill chuck they use for charging shocks, no lose 556 schrader chuck with 300psi gauge. RPG makes a nice one.

https://www.rpgoffroad.com/product/air-control-valve-assembly/

or buy the pieces and make it yourself.

This looks like the one they had, but without the fancy RPG colors...

 

[MatMan]

Because air is not an ideal gas, so it expands/contracts and also could contain moisture which adds to that effect.

An ideal gas ensures a constant bump stop pressure so you dont get wild pressure swings (some climates see 50-60 degree temp changes during a trip so you can imagine what that does to pressure).

CO2 is a suitable alternative to N2,

RPGs gauge is perfect, highly recommended.

 

[Robtor310]

Many people including myself just use a mountain bike shock pump off Amazon. Works like a charm. Ill adjust a few times anyways to see how much travel im using. I have an O-ring on the shaft (zip tie works too) to see my travel.

100-110psi in a SCAB with 100 lbs in the bed gets me about 75% travel max.

https://www.amazon.com/gp/product/B005543YUE/?tag=fordraptorforum-20

 

[TXRaptor]

Many people including myself just use a mountain bike shock pump off Amazon. Works like a charm. Ill adjust a few times anyways to see how much travel im using. I have an O-ring on the shaft (zip tie works too) to see my travel.

100-110psi in a SCAB with 100 lbs in the bed gets me about 75% travel max.

https://www.amazon.com/gp/product/B005543YUE/?tag=fordraptorforum-20

No concerns about the Nitrogen?

My SCREW is set to 110 lbs, according to the shop.