The VERTEX Cast Replica Top End Kit is engineered for riders seeking a balance of weight reduction and structural integrity, utilizing gravity cast aluminum alloy pistons with an 18% silicone content. This specific alloy composition produces an extremely light yet strong piston, while all skirts feature a high-tech Molybdenum Disulfide coating designed to accelerate break-in time and extend overall piston life. The kit is fully heat treated with a T-5 hardening and tempering cycle to ensure consistent performance, and it includes OEM replacement rings, pins, circlips, top end gaskets, and applicable wrist pin bearings or cam chains.
For applications requiring maximum strength, VERTEX offers forged alternatives crafted from 2618 aluminum, which provide superior durability and improved power and torque across the entire rpm range. These forged options, including high-compression variants, are paired with new T-box forgings and DLC coated wrist pins to enhance component strength. Notably, the Replica KTM 2-stroke pistons in this line are factory supplied to KTM, ensuring that the replacement parts meet original equipment standards for fit and function.