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Fox RC4 Boost valve uses Nitrogen?

TrailzHozer

Monkey
Jan 29, 2010
120
0
I was just going through the latest issue of Delcine and was reading a review of the Fox RC4.

under the Boost section they mention that the boost valve comes nitrogen charged from the factory and that riders shouldn't regulate the the Boost pressure unless they are able to refill it with nitrogen.

is this true? I thought you could simply use a shock pump to adjust the boost pressure?
 
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