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Meets the demands of off-road, all valves are backed by an established record of performance and reliability in competition that is unapproachable Yamaha -- YFZ 450 4x2 -- (2007, 2008, 2004, 2006, 2005, 2009)

Meets the demands of off-road, all valves are backed by an established record of performance and reliability in competition that is unapproachable Yamaha -- YFZ 450 4x2 -- (2005, 2009, 2006, 2008, 2007, 2004)

Meets the demands of off-road, all valves are backed by an established record of performance and reliability in competition that is unapproachable Yamaha -- YFZ 450 4x2 -- (2007, 2006, 2005, 2009, 2004, 2008)

Meets the demands of off-road, all valves are backed by an established record of performance and reliability in competition that is unapproachable Honda -- TRX450R -- (2007, 2006, 2008, 2009)

Meets the demands of off-road, all valves are backed by an established record of performance and reliability in competition that is unapproachable Honda -- TRX450R -- (2008, 2009, 2007, 2006)

Meets the demands of off-road, all valves are backed by an established record of performance and reliability in competition that is unapproachable Honda -- TRX450R -- (2007, 2009, 2006, 2008)

Meets the demands of off-road, all valves are backed by an established record of performance and reliability in competition that is unapproachable Kawasaki -- KX 450 F -- (2012, 2010, 2014, 2009, 2013, 2011)

Meets the demands of off-road, all valves are backed by an established record of performance and reliability in competition that is unapproachable Honda -- CRF450X -- (2002, 2003, 2008, 2007, 2005, 2004, 2006); Honda -- CRF450R -- (2004, 2002, 2005,...

Meets the demands of off-road, all valves are backed by an established record of performance and reliability in competition that is unapproachable Honda -- CRF250X -- (2006, 2005, 2008, 2009, 2007, 2004); Honda -- CRF250R -- (2008, 2007, 2005, 2004,...

Meets the demands of off-road, all valves are backed by an established record of performance and reliability in competition that is unapproachable Honda -- TRX450R Sportrax -- (2005, 2004)

Meets the demands of off-road, all valves are backed by an established record of performance and reliability in competition that is unapproachable Honda -- TRX450R -- (2007, 2006, 2008, 2009)

Meets the demands of off-road, all valves are backed by an established record of performance and reliability in competition that is unapproachable Kawasaki -- KX 450 F -- (2012, 2011, 2010, 2009, 2013, 2014)