All Vertex Piston kits include the following parts: Pistons, Rings, Wrist Pins, and Circlips. Features -All piston skirts are coated with a hi-tech Molybdenum Disulphite coating for faster break-in time and increased piston life -Cast Replica piston kits are gravity cast aluminum alloy (not forged) with 18% silicone content, which produces an extremely light but very strong piston -Forged Replica pistons are forged from 2618 aluminum for superior strength and durability -Forged High Compression pistons improve power and torque across entire rpm range -Forged Big Bore pistons increase engine's displacement, torque, and peak horsepower -Forged Replica pistons are forged OE replacements -All pistons are heat treated with a T-5 hardening and tempering cycle
-Replica pistons and all rings are OEM replacements
Piston Versions
-Cast Replica pistons - Cast OE replica piston
-Cast BB - Big bore stock compression cast piston
-Forged Replica piston - Forged replacement for an OE cast piston for better strength
-Forged Replica - Forged OE stock compression piston
-Forged BB - Forged OE stock compression big bore piston
-Forged Race - Unique forged GP style race piston with only one compression ring
-Forged HC - Forged high compression pistons
-Two stroke Race pistons - Unique cast GP style race piston with only one compression ring
