ATHENA

Made of high-performance aluminum alloy with high silicon content that guarantee the same reliability of the OE piston, while at the same time providing greater resistance and excellent performance...

Made of high-performance aluminum alloy with high silicon content that guarantee the same reliability of the OE piston, while at the same time providing greater resistance and excellent performance...

Made of high-performance aluminum alloy with high silicon content that guarantee the same reliability of the OE piston, while at the same time providing greater resistance and excellent performance...

Made of high-performance aluminum alloy with high silicon content that guarantee the same reliability of the OE piston, while at the same time providing greater resistance and excellent performance...

Athena Piston Rings 58Mm Yam For Athena Pistons Only S41316157

Athena Piston Rings 68Mm Yam For Athena Pistons Only S41316152

Athena Power Valve Yam S410485303018

Athena Power Valve Yz85 Bb Yam S410485303077

Primary gear sets provide a higher gear ratio than stock (22% to 33%), depending on the model, for more top end speed

Primary gear sets feature a higher gear ration than stock (22%-33% depending on model) for higher top-end speed. GEAR PRIMARY YAMAHA

Kit includes a multi-layer head gasket and a choice of two base gaskets, one stock and one hi-compression!Uses the same quality gaskets as our top end and complete kitsValve cover gaskets are offered...

Kit includes a multi-layer head gasket and a choice of two base gaskets, one stock and one hi-compression!Uses the same quality gaskets as our top end and complete kitsValve cover gaskets are offered...