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Comes equipped with G-Force technology including stablesteer valving for consistent response from all four shocks, giving you the most stable, safest ride 1-3/16 inch bore piston construction and expanded reservoir tube provides better cooling for longer shock life Chrome plated piston rods for improved piston rod seal life G-Force piston - sintered iron construction for durability Wear compensating piston seal reduces oil by-pass for maximum shock control and performance