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Home > Technical Info > F.A.Q. > Off Road Racing Shock FAQ > What size shaft do I need?

What size shaft do I need?

Answer:

A 5/8" shaft will allow the shock to dampen suspension better as there is less spring force created by the smaller volume of displacement, but a 7/8" shaft is clearly stronger. A 7/8" shaft can provide more resistance to compression by providing another easy adjustment in spring force thru increased nitrogen pressure. A 1.25" shaft shock (air shock) is just an extreme example of high pressure gas created spring force.

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