Vertex - Piston Kit Cast 100.45/+0.50 9.1:1 Yam - 23104050 - Piston Kit
                
            - 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 engines 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
 - Kits include piston, rings, wrist pin and circlips
 - Two stroke replacement rings are sold individually (Example if your piston has two rings you will want to order two rings)
 - Four-stroke piston rings sold as a set