Vertex Forged Replica Top End Kit For Yamaha YZ250FX 2019-2023 | VTKTC24371A Size:STD Kawasaki KLX250S 2009-2020Kawasaki KLX300S 2021-2023

Kawasaki KLX250S 2009-2020Kawasaki KLX300S 2021-2023

Bite valve with dust cover

Max HP is increased by 8% and max torque is bumped an incredible 13%

KTM 450 SX-F 2003-2022

One piece 6061 Billet Aluminum design

Vertex Forged Replica Top End Kit For Yamaha YZ250FX 2019-2023 | VTKTC24371A Size:STD Kawasaki KLX250S 2009-2020Kawasaki KLX300S 2021-2023All piston skirts are coated with a high tech Molybdenum Disulfide coating for faster break in time and increased piston life Forged pistons are forged from 2618 aluminum for superior strength and durability Forged Replica pistons are forged OE replacements All pistons are heat treated with a T 5 hardening and tempering cycle All rings are OEM replacements. Top end piston kit includes piston, rings, pins, circlips, top end gaskets, and wrist pin