Manley
Manley, valve spring kit. Steel. Std to .600" lift
Manley, valve spring kit. Steel. Std to .600" lift
Impossible de charger la disponibilité du service de retrait
Includes steel top collars; steel lowers; a beehive style spring set; early style seals and a seal installation tool. Can be used as a direct replacement from stock up to .550" lift. Machining is not required. Manley recommends the use of the included earlier style Viton oil seals and not the oil seal-lower collar set-up as used by The Factory. Pressure: 150lbs@1.800"; 355lbs@1.200". Coil bind: 1.085".
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Why buy from Forty5°
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Verified compatibility
Every part we ship is checked against your bike's platform, year, and engine. If it doesn't fit, we tell you before you check out.
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Workshop installation
Book a serviceHave us fit it. Book installation at parts intake — same-day on most jobs, master techs only.
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Founder-led aftersales
Get in touchQuestions after fitment? You'll speak to the people who installed it. We answer email and WhatsApp seven days a week.