Fox Racing Shocks 981-25-403-L Factory Race External Bypass Piggyback Shock - 2.5x12 3-Tube Left

The Fox Racing Shocks 981-25-403-L is a Factory Race Series 2.5-inch bore, 12-inch stroke external bypass piggyback shock absorber designed for serious off-road racing and high-performance suspension applications. This is the left-side unit featuring a three-tube external bypass configuration for precise damping control across a wide range of terrain and speed inputs.

Key Features:

• 2.5" Bore x 12" Stroke — large-diameter body delivers increased oil volume and superior heat dissipation for sustained performance under demanding race conditions
• 3-Tube External Bypass Design — multiple bypass tubes allow independent tuning of low-speed and high-speed compression damping, providing a highly customizable ride feel
• Piggyback Reservoir — additional oil and nitrogen gas capacity reduces fade and maintains consistent damping performance during extended off-road use
• Rebuildable and Serviceable — built to be maintained and rebuilt, extending service life and protecting your investment over countless race miles
• Custom Valving Options Available — can be valved to specific vehicle weight, spring rate, and driving style for maximum performance tuning
• Fox Factory Race Build Quality — machined from high-strength aluminum and steel components with premium seals and hard anodized finish for durability in harsh environments
• Left-Side Application — designated left-hand fitment for proper bypass tube positioning and suspension geometry

Fox Racing Shocks' Factory Race Series represents the pinnacle of off-road shock absorber technology, used by professional racing teams across desert racing, rock crawling, and ultra-4 competition. The external bypass design allows damping force to be adjusted at each bypass tube collar, giving tuners granular control over how the shock responds at different points in the stroke. Paired with the piggyback reservoir, this shock is engineered to handle the most punishing race environments without sacrificing ride quality or control.