🛠️ High-performance beehive valve spring kit engineered for V-Twin engines, direct bolt-in replacements with no machining or rocker box clearancing required. 🇺🇸
- Machined from premium-grade high tensile chrome silicon single-conical ovate wire for consistent spring rate and durability.
- Shot-preened and treated with a specialized thermal process and a NexTex® finish to extend fatigue life under high demand.
- Kit includes beehive valve springs (available with or without titanium retainers as noted), machined spring seats, seat shims, valve locks and Viton® valve seals.
- Fits stock 6.00 mm valve stems with triple groove; uses factory stock steel retainers unless titanium retainers are specified.
- Direct bolt-in replacement — no additional machining required for most stock rocker configurations.
Key specifications:
- Maximum lift: up to 0.565"
- 226 lb @ 0.970" open height
- Coil bind @ 0.920"
- Seat loads / installed heights: 134 lb @ 1.375" (0.405" lift), 127 lb @ 1.405" (0.435" lift), 125 lb @ 1.415" (0.445" lift), 121 lb @ 1.435" (0.465" lift), 116 lb @ 1.455" (0.485" lift), 113 lb @ 1.470" (0.500" lift), 109 lb @ 1.490" (0.520" lift), 103 lb @ 1.520" (0.550" lift)
- Cam specs measured on the lifter @ 0.050" lift with 1.61 rocker arm ratio.
Designed for riders and builders who require proven fatigue life and reliable valve control at higher lifts, this kit delivers a durable, ready-to-install solution. 🧩
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