Cylinder Heads - Twin Cam7131384675 Surface Flood Light 2023 Rieju MR Pro 300

2023 Rieju MR Pro 300 | 2023 Rieju MR Racing 300 | 2023 Rieju MR Ranger 300 | 2023 Rieju MR Six Days 300 | 2010 Gas Gas EC 250 | 2010 Gas Gas EC 300 | 2009 Gas Gas EC 300 | 2018 Gas Gas XC 250 | 2007 Gas Gas EC 250 | 2022 Rieju MR Ranger 300 | 2017 Gas Gas EC 300 | 2006 Gas Gas EC 250 | 2005 Gas Gas Wild HP 300 | 2013 Gas Gas EC 300 | 2012 Gas Gas EC 300 | 2011 Gas Gas EC 250 | 2021 Rieju MR Pro 300 | 1986 Honda TRX250R | 2015 Gas Gas EC 250 | 2002 Gas Gas EC 250 | 2002 Gas Gas EC 300 | 2002 Gas Gas MC 250 | 2001 Gas Gas EC 300 | 2001 Gas Gas MC 250 | 2000 Gas Gas MC 250 | 1999 Gas Gas MC 250 | 1998 Gas Gas MC 250 | 1997 Gas Gas MC 250 | 2005 Gas Gas EC 300 | 2005 Gas Gas MC 250 | 2001 Honda CR250R | 1999 Honda CR250R | 1998 Honda CR250R | 1995 Honda CR250R | 1994 Honda CR250R | 1990 Honda CR250R | 1987 Honda CR250R | 1985 Honda ATC250R | 1984 Honda CR250R | 2019 Gas Gas EC 250 | 2019 Gas Gas EC 300 | 2009 Gas Gas EC 250 | 2021 Rieju MR Racing 300 | 2003 Gas Gas EC 250 | 2003 Gas Gas Wild HP 300 | 2018 Gas Gas EC 250 | 2018 Gas Gas EC 300 | 2017 Gas Gas EC 250 | 2016 Gas Gas EC 250 | 2022 Rieju MR Pro 300 | 2022 Rieju MR Racing 300 | 2022 Rieju MR Six Days 300 | 2006 Gas Gas EC 300 | 2006 Gas Gas MC 250 | 2008 Gas Gas EC 300 | 2000 Gas Gas EC 250 | 1998 Gas Gas Enducross EC 250 | 1997 Gas Gas Enducross 250 | 2014 Gas Gas EC 300 | 2013 Gas Gas EC 250 | 2012 Gas Gas EC 250 | 2011 Gas Gas EC 300 | 2018 Gas Gas XC 250 Phoenix | 2005 Gas Gas EC 250 | 2004 Gas Gas EC 300 | 2004 Gas Gas MC 250 | 2000 Honda CR250R | 1997 Honda CR250R | 1993 Honda CR250R | 1991 Honda CR250R | 1988 Honda CR250R | 1986 Honda ATC250R | 1986 Honda CR250R | 1985 Honda CR250R | 2009 Gas Gas MC 250 | 2015 Gas Gas EC 300 | 2014 Gas Gas EC 250 | 2001 Gas Gas EC 250 | 2021 Rieju MR Ranger 300 | 2008 Gas Gas EC 250 | 2008 Gas Gas MC 250 | 2007 Gas Gas EC 300 | 2007 Gas Gas MC 250 | 2016 Gas Gas EC 300 | 2004 Gas Gas Wild HP 300 | 2003 Gas Gas EC 300 | 2003 Gas Gas MC 250 | 2000 Gas Gas EC 300 | 1999 Gas Gas Enducross EC 250 | 2019 Gas Gas XC 250 | 2004 Gas Gas EC 250 | 1996 Honda CR250R | 1992 Honda CR250R | 1989 Honda CR250R

ATC 185 : 1980

This will give you the required new cam arm weight

DR 800 : 1992-1994-1996-1997-1998-1999-1993-1995-2000-1988-1989-1990-1991

Iron 883 XLN : 2009

Cylinder Heads - Twin Cam7131384675 Surface Flood Light 2023 Rieju MR Pro 300Caracteristicas: High port flow gives great performance now, and more later when additional upgrades are done Heads are fully assembled with springs and valves Compression ratios vary depending on cylinder heads chosen, pistons used and engine displacement; see Compression Ratios chart for specifications 79cc heads work great with stock motors for 88" to 103" motors; 89cc heads work best for motors over 103" or with high compression pop up pistons