HANS IV 20 Large Post Anchor SFI/FIA

The HANS IV 20 Large Post Anchor SFI/FIA is a professional-grade head and neck support system engineered to manage extreme deceleration forces in high-performance motorsport environments. Built to SFI 38.1 and FIA specifications, this device combines proven engineering with trusted safety certifications that satisfy the most demanding racing sanctioning bodies worldwide.

Designed in large size to accommodate drivers with broader shoulder and neck profiles, the HANS IV 20 uses a post anchor tether system that distributes lateral and fore-aft loads across the shoulders rather than concentrating stress at the neck. The plastic construction balances weight efficiency with durability, keeping total system weight at just 2.9 pounds—critical for maintaining driver comfort during extended race sessions. The post anchor configuration mounts securely to racing seats equipped with HANS-compatible hardware, providing stable lateral support while allowing natural head movement during normal driving.

This system is engineered for drivers in open-wheel racing, stock car competition, sports car racing, and other high-speed motorsports where sudden directional changes or barrier contact create neck injury risk. The large size is optimal for drivers who find standard sizing restrictive or uncomfortable. HANS devices with SFI 38.1 and FIA approval are required or strongly recommended by most major racing sanctioning bodies, making this certification status essential for legal race eligibility.

The post anchor design represents the most common and proven HANS configuration in motorsport, with decades of real-world performance data supporting its effectiveness in reducing basilar skull fractures and cervical spine injuries. Proper fit and helmet compatibility should be verified before use, and drivers should consult the manufacturer's fit guide to ensure correct sizing and installation.