Set of composite molded surprise pistons for just two surprise absorbers with eight 1.2mm holes & two 1.2mm holes. Two-way flow shock pistons work in different ways as soon as the piston travels up or down. With all the plastic valve installed regarding piston, 2 holes are closed whenever piston travels up
proper the piston travels down, the valve starts 2 additional holes so that the oil flows through 10 holes in total. This configuration enables perfect landings from jumps, even with a soft surprise set-up. Constructed from specially-formulated composite material to provide smooth action & durability. Well-proven molding process ensures perfect piston roundness after production, so that the pistons move completely within the shock bodies for identical shock action in every four shocks.