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Two-stroke pistons are made from 4032 siliciumFour-stroke pistons are made from 2618 silicium - the same material used to produce Formula 1 pistonsBoth include 3% copper in materials for better heat resistanceAll pistons are forged using a precision...

Includes rings, clips and pinEasy-to-follow step-by-step installation instructions Yamaha -- YZ 250 F -- (2003, 2006, 2001, 2002, 2004, 2007, 2005); Yamaha -- WR 250 F -- (2004, 2007, 2009, 2008, 2002, 2001, 2003, 2006, 2005, 2010, 2011, 2012)

Includes rings, clips and pinEasy-to-follow step-by-step installation instructions Honda -- CRF250X -- (2009, 2008, 2006, 2007, 2005, 2004); Honda -- CRF250R -- (2008, 2009, 2004, 2007, 2006, 2005)

Includes rings, clips and pinEasy-to-follow step-by-step installation instructions Kawasaki -- KX 450 F -- (2014, 2012, 2009, 2013, 2011, 2010, 2015, 2017, 2018, 2016)

Includes rings, clips and pinEasy-to-follow step-by-step installation instructions KTM -- 250 EXC-F -- (2015, 2014, 2016, 2020, 2018, 2017, 2019); KTM -- 250 SX-F -- (2014, 2015, 2013, 2021, 2020, 2022, 2016, 2018, 2017, 2019); KTM -- 250 XC-F -- (2013,...

Includes rings, clips and pinEasy-to-follow step-by-step installation instructions Yamaha -- YZ 250 F -- (2014, 2015, 2017, 2016, 2018); Yamaha -- WR 250 F -- (2016, 2017, 2015)

Includes rings, clips and pinEasy-to-follow step-by-step installation instructions Yamaha -- WR 250 F -- (2015, 2016, 2017); Yamaha -- YZ 250 F -- (2015, 2014, 2017, 2016, 2018)

Two-stroke pistons are made from 4032 siliciumFour-stroke pistons are made from 2618 silicium - the same material used to produce Formula 1 pistonsBoth include 3% copper in materials for better heat resistanceAll pistons are forged using a precision...

Includes rings, clips and pinEasy-to-follow step-by-step installation instructions Yamaha -- Banshee 350 4x2 -- (2000, 1992, 1988, 1996, 1994, 1995, 2002, 2003, 2001, 1991, 1997, 1990, 2005, 1987, 1999, 2004, 1993, 1998, 2006, 1989)

Includes rings, clips and pinEasy-to-follow step-by-step installation instructions Yamaha -- Banshee 350 4x2 -- (2001, 2005, 2000, 1992, 2004, 1997, 1990, 1994, 1995, 1989, 1996, 1999, 2006, 2002, 2003, 1993, 1987, 1998, 1988, 1991)

Includes rings, clips and pinEasy-to-follow step-by-step installation instructions Kawasaki -- KX 125 -- (2005, 2006, 2004, 2007, 2003)

Includes rings, clips and pinEasy-to-follow step-by-step installation instructions Kawasaki -- KX 125 -- (2007, 2003, 2004, 2006, 2005)