Dirt Bike

The latest carbon fiber technology with all the advantages of Boyesens patented dual-stage reed designUtilizes a carbon fiber top reed and a durable fiberglass/epoxy bottom reedOffers the quickest acceleration any reed can offer; maximizes horsepower and...

Superior quality gasket sets from Athena S.P.ASteel core materials feature high springback and superior tensile strengthRevolutionary transparent coating guarantees a perfect seal even at extremely high temperaturesHigh-temperature blue silicone beading...

Superior quality gasket sets from Athena S.P.ASteel core materials feature high springback and superior tensile strengthRevolutionary transparent coating guarantees a perfect seal even at extremely high temperaturesHigh-temperature blue silicone beading...

Superior quality gasket sets from Athena S.P.ASteel core materials feature high springback and superior tensile strengthRevolutionary transparent coating guarantees a perfect seal even at extremely high temperaturesHigh-temperature blue silicone beading...

Straight through no shut offAvailable for 1/4in. and 5/16in. ID fuel lineCapable of withstanding temperatures of -40 degrees F - 180 degrees F

Standard black vinyl coil-wound housingMeet or exceed OEM qualityInner nylon sleeve for longer life and smooth operation

Stage 1 ITR: Dual cam engineIntake and exhaust cams sold separatelyExcellent low end to midrange gainsUses stock valve springs

Spring sets are made of heavy-duty steel and outperform originalsSpring sets contain springs only

Spring sets are made of heavy-duty steel and outperform originalsSpring sets contain springs only

Spring sets are made of heavy-duty steel and outperform originalsSpring sets contain springs only

Spring sets are made of heavy-duty steel and outperform originalsSpring sets contain springs only

Spring sets are made of heavy-duty steel and outperform originalsSpring sets contain springs only