4-Point vs. 5-Point vs. 6-Point Racing Harnesses: Which One Is Right for You?

■ 4-Point Harnesses: The Entry Level

4-point harnesses consist of two lap belts and two shoulder straps. While they are a popular upgrade for street-legal “tuner” cars or casual track days, they have a significant safety drawback in high-speed racing: Submarining.

The Risk:
Without a crotch strap (anti-sub strap), in a head-on collision, your body can slide under the lap belt, leading to severe internal injuries as the belt rides up into your abdomen.
Best For:
Low-speed autocross or performance street driving (where permitted by law).

■ 5-Point Harnesses: Adding the Anti-Sub Strap

The 5-point harness adds a single “anti-sub” strap that runs between the driver’s legs and connects to the buckle.

How it Works:
The adding single anti-sub strap keeps the lap belt low across the pelvis, preventing the “submarining” effect mentioned above.
The Downside Concern:
For some drivers, a single center strap downside can be uncomfortable and may not provide the most stable load distribution across the lower body during an impact.

■ 6-Point Harnesses: The Professional Standard

In professional racing, the 6-point harness is the gold standard. It uses two crotch straps that wrap around the thighs.

Maximum Safety:
The 6-point design provides the best protection against submarining and ensures the driver stays perfectly centered in the seat, even during lateral (side) impacts.
Best For:
Wheel-to-wheel racing, high-speed track days, and professional competition.

■ まとめ

If you are serious about your safety on the track, the 6-point harness is the clear winner for its superior restraint and comfort. At Beltenick, we specialize in FIA and SFI-certified harnesses designed to meet the most rigorous safety standards.