Product Details
H&R 36mm I.D. Race Springs are crafted from special lightweight (hf) 54SiCr6 spring steel with multiple lengths and rates for optimal tuning and setup. 36mm main and tender springs includes main springs ranging from 2.76" to 5.12" in length, and 72 lbs/inch to 686 lbs/inch spring rates. Tender Springs are available for optimal fine tuning and performance. TENDER SPRINGS: H&R 36mm I.D. Tender Springs are made of trapezoidal (flat rather than round) spring wire for a low block height and maximum travel. These springs are designed for demanding motorsport environments, and, like all H&R Springs, have been pre-blocked at the factory so they will never set or sag.
Standard Features
- Designed for compact motorsport suspension applications, including Formula Student/Formula SAE and other formula racing setups.
- Manufactured from H&R's special lightweight high-strength spring steel for durability and reduced spring weight.
- Provides a consistent and predictable spring response throughout suspension travel, allowing precise suspension tuning.
- Developed for competition applications where consistent handling, suspension control, and repeatable performance are critical.
- Available in a broad range of lengths and rates, allowing the spring to be matched to different vehicle setups and suspension requirements. H&R lists 36mm main springs from approximately 2.76" to 5.12" and 72–686 lb/in.
- The high-strength spring material allows H&R to reduce weight while maintaining the required spring characteristics for racing applications.
Specifications
| Part Number | ZF045-36-012 |
| Part Name | Lowering Springs |
| Ride-Height Adjustable | No |
| Spring Type | Linear |
| Free Length | 1.77 in. |
| Rate in lbs/in | 69 PPI |
| Block Height | 0.81 in. |
| Load at Block | 65 lbs. |
| Weight | 0.13 lbs. |