Manley
美國
Manley Performance 是美國知名高性能引擎零件品牌，主要生產氣門、氣門彈簧、推桿、連桿、活塞及各類 valvetrain 零件，廣泛應用於電單車、汽車及賽車引擎改裝領域。
在高性能引擎中，每一個內部零件都會影響整體表現。Manley Performance 多年來一直為引擎改裝玩家、專業技師及賽車團隊提供高精度引擎零件，無論是 Harley-Davidson V-twin 引擎升級、性能改裝還是賽事用途，都以穩定品質及耐用性受到廣泛認可。
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Race Master intake valve set. STD
HK$740
Race Master exhaust valve set. STD
HK$640
valve guide seal set. Viton 4-pk
HK$160
Severe Duty stainless valve, intake STD
HK$830
Race Master valve kit. Stock - .495" valve lift
HK$3,050
Severe Duty stainless valve, exhaust. STD
HK$990
valve spring kit. Steel. Std to .600" lift
HK$2,140
Severe Duty stainless valve, intake. STD
HK$1,030
valve spring kit. Titanium. Std to .650" lift
HK$2,170
Severe Duty stainless valve, exhaust. STD
HK$830
valve spring kit. Steel. Std to .550" lift
HK$1,380
Race Master stainless valves, intake. STD
HK$800