The Profi II ASM incorporates Schroth's legendary ASM (Anti-SubMarining) technology that is the only thing like it on the market. ASM is an extra fold of material sewn into the inboard shoulder belt that elongates at a different rate than the outboard belt. This allows your upper torso to twist slightly. On the rebound phase, your torso is planted firmly back in the seat rather than allowed to slide under the lap belt.
You can add a single or dual sub strap to make this belt into a 5 point or 6 point at any time. We have recently tested this harness with a HANS device, and the results were great. You can use 4 point ASM Harnesses with a HANS device.
The lap belts provided with this harness are only available in the Bolt-In style as they are most commonly needed in setups requiring street legality. If you need different setups, please call or email us. These are available in both Pull-up and Pull-down.
The Shoulders come ready to be wrapped around a roll-bar. Snap or Bolt attachments can be purchased separately. Because of the ASM, these belts are sided. Be sure to install them correctly: the ASM fold should be on the Inboard shoulder belt.
SELECT SIDE(S) BELOW