H&R RF130-36-035 36mm ID Race Spring 5.12in Length 200 lbs/in

The H&R RF130-36-035 is a single 36mm inside diameter race spring engineered for high-performance motorsport coilover applications. Featuring a 5.12-inch free length and a 200 lbs/inch spring rate, this spring delivers a precise, linear response suited to demanding track and competition environments.

Key Specifications:

• Inside Diameter: 36mm
• Free Length: 5.12 inches
• Spring Rate: 200 lbs/inch (35 N/mm)
• Block Height: 2.09 inches
• Load at Block: 607 lbs
• Weight: 0.58 lbs
• Sold: Individually (single spring)

Key Features:

• Constructed from premium lightweight (hf) 54SiCr6 spring steel for exceptional strength-to-weight ratio
• Factory pre-blocked so the spring will never set or sag over time
• Shot-peened finish for enhanced fatigue resistance and long service life
• Linear spring characteristic for predictable and consistent handling feedback
• 100% manufactured in Germany to H&R's exacting motorsport standards
• Compatible with H&R's 36mm tender/helper springs for fine suspension tuning

The H&R 36mm race spring lineup spans free lengths from 2.76 to 5.12 inches and spring rates from 72 to 686 lbs/inch, giving engineers and builders extensive options for coilover setup and corner-weight tuning. The RF130-36-035 is trusted in professional motorsport disciplines including rally, circuit racing, and time attack.