King RS4020-BP6H 4.0 Race Series 6-Tube Bypass Shock 20 Inch Stroke Remote Reservoir

The King RS4020-BP6H is a 4.0-inch diameter Pure Race Series bypass shock engineered for extreme off-road racing applications. This professional-grade shock features a 20-inch stroke with six separate bypass tubes and a remote hose reservoir configuration, delivering unparalleled control and adjustability for high-performance vehicles.

Key Features:

• 4.0-inch diameter shock body precision bored to +/- .001 inch tolerances
• Six independently adjustable bypass tubes made from 4130 chromoly material
• 1.25-inch diameter heat-treated shaft for extreme durability
• Large 1.00-inch bypass tubes for unrestricted fluid flow
• Remote hose reservoir with hard-anodized 6063 aluminum construction
• Cold-drawn 2024 billet aluminum piston with PTFE-impregnated bronze wear band
• Stainless alloy heat-treated valve shims stable up to 450 degrees
• Each bypass stage is separately tunable and position-sensitive
• Precision TIG-welded bypass tubes pressure tested to 300 PSI

Built to dominate in the world's toughest off-road races including the Baja 1000 and Dakar Rally, this shock delivers fade-free performance under extreme conditions. The advanced bypass technology allows each stage to operate independently, providing precise damping control throughout the entire stroke. Hand-built in the USA with aircraft-grade materials and designed for professional racing applications where performance is paramount.