PROX offers you a piston kit designed for high-performance 2-stroke engines, offering an excellent combination of power, reliability and durability in intensive use. Made from high-quality aluminum, this piston provides optimum resistance to heat, high stress and wear, while guaranteeing constant engine stability even at high rpm. Its precision design improves combustion chamber sealing to optimize compression, combustion and overall engine efficiency. Thanks to its lightweight, balanced structure, it promotes rapid rev-up and improved engine responsiveness across the entire operating range.

Fits on :

YAMAHA YZ 85 LW 2023

YAMAHA YZ 85 LW 2022

YAMAHA YZ 85 LW 2021

YAMAHA YZ 85 LW 2020

YAMAHA YZ 85 LW 2019

YAMAHA YZ 85 LW 2018

YAMAHA YZ 85 LW 2017

YAMAHA YZ 85 LW 2016

YAMAHA YZ 85 LW 2015

YAMAHA YZ 85 LW 2014

YAMAHA YZ 85 LW 2013

YAMAHA YZ 85 LW 2012

YAMAHA YZ 85 LW 2011

YAMAHA YZ 85 LW 2010

YAMAHA YZ 85 LW 2009

YAMAHA YZ 85 LW 2008

YAMAHA YZ 85 LW 2007

YAMAHA YZ 85 LW 2006

YAMAHA YZ 85 LW 2005

YAMAHA YZ 85 LW 2004

YAMAHA YZ 85 LW 2003

YAMAHA YZ 85 LW 2002

YAMAHA YZ 85 SW 2023

YAMAHA YZ 85 SW 2022

YAMAHA YZ 85 SW 2021

YAMAHA YZ 85 SW 2020

YAMAHA YZ 85 SW 2019

YAMAHA YZ 85 SW 2018

YAMAHA YZ 85 SW 2017

YAMAHA YZ 85 SW 2016

YAMAHA YZ 85 SW 2015

YAMAHA YZ 85 SW 2014

YAMAHA YZ 85 SW 2013

YAMAHA YZ 85 SW 2012

YAMAHA YZ 85 SW 2011

YAMAHA YZ 85 SW 2010

YAMAHA YZ 85 SW 2009

YAMAHA YZ 85 SW 2008

YAMAHA YZ 85 SW 2007

YAMAHA YZ 85 SW 2006

YAMAHA YZ 85 SW 2005

YAMAHA YZ 85 SW 2004

YAMAHA YZ 85 SW 2003

YAMAHA YZ 85 SW 2002