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The FOX external bypass check valve service set is a damping adjustment assembly designed as a rebuild kit for Fox shocks with a .75-inch tube. Supplied with the red adjustment knob, this service set lets technicians refresh or repair the external bypass damping components and restore adjustable control without replacing the entire shock. It’s a focused parts kit for maintenance of compatible FOX damping systems.
Fox Shocks Damping Adjustment Assembly External Bypass Check Valve Service Set (.75 Tube) - Red Knob
