FAQ Racing Belts

How many years is a FIA harness valid?

FIA harnesses are valid for 5 years plus the year of manufacture. This means if you buy a new harness manufactured at the beginning of the race season in 2016 your harness will be valid for racing for the 2016 season and the next 5 years, expiring at the end of the 2021.

What is asm® and how does it work?

SCHROTH asm® is a patented energy-conversion system designed to help prevent submarining in the event of an accident. The asm® system is located at the in-board shoulder belt. It is designed to "elongate" allowing a slight rotation of the upper torso in the very early milliseconds of a crash. This rotation of the upper body also rotates the pelvis slightly and loads the lap belts earlier, preventing the body from submarining under the lap belts. (see video - English) The asm® system is standard on all 4 point SCHROTH harnesses where no crotch strap is available to keep the lap belt properly positioned.

When should I replace my harness?

Harnesses should be replaced after any moderate or severe impact. The properties and strength of the webbing and components may be altered in the event of a crash. Webbing is manufactured with a pre-determined elongation (stretch) to bring the occupant to a controlled stop. The hardware components may be weakened or damaged. Therefore it is recommended to replace any harness which as been used in an accident. Any extreme fraying of the webbing or deterioration due to prolonged exposure to weather or chemicals (gas, oil, cleaners, brake fluids, etc) should be replaced.

What is a Hybrid™ Harness?

The Hybrid style crotch belt setup is a new technological breakthrough from SCHROTH. Each sub strap has a loop sewn in the end which loops around the hardware for the lap belts. The lap belts then click into the cam lock and provide for a more efficient and comfortable transfer of energy to the cam lock keeping the occupant in place.

2" (50mm) or 3" (75mm) wide Lap Belts? Which is better?

The main premise behind the 2" lap belt is one of added safety. A 2" belt rides within the crest of the human pelvis where a 3" belt would rest on the edges. This allows you to get the belt up to 1.5" (40mm) tighter. That means the lap belt will be working earlier in the accident event because it gets loaded faster. The 2" (50mm) webbing is rated over 6000lbs and is approved by FIA and SFI. It's also more comfortable.

Pro-Tip: The menu can also be openend and closed with the m key.