Feuling
Feuling, Endurance Beehive valve spring kit. 565" lift Re-us
Feuling, Endurance Beehive valve spring kit. 565" lift Re-us
Couldn't load pickup availability
Must reuse OEM steel upper spring collars. Installed pressure 134lbs@1.375" (0.405 lift); 103 lbs@1.520" (0.550 lift); coil bind@.920". Direct replacement; installs without machining or rocker box clearancing. High tensile chrome silicone wire with a shot-peened heat treatment and a super NexTex® finish. Kits include springs; lower collars; no upper collars; shims; keys and Viton® seals.
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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.