The Clubman II ASM is Schroth’s entry-level four-point competition harness, and this listing supplies a driver-and-passenger pair together: part 91132 for the driver’s side and 91131 for the passenger, both sold as one item. Four-point means two shoulder belts and two lap belts meeting at a central aircraft buckle. The ASM system (Schroth’s anti-submarining mechanism) works through the geometry of the lap belt attachment, pulling the belt down across the top of the thigh rather than allowing it to ride up in a frontal impact.
It is FIA 8854-1998 homologated, which is the standard that covers four-point harnesses for competition use. Three-inch shoulder belts, 2-inch lap belts, clip-in installation. NOT HANS compatible. The four-point design is accepted in many club and sprint series where a full six-point is not required, and the Clubman II is the most accessible entry point into FIA-approved four-point belts in the Schroth range.
Supplied in black. The Sport Seat Position attribute confirms this listing covers both RHD driver and RHD passenger sides; the harness geometry differs between seats (the shoulder belt routing follows the opposite angle), so the correct side matters. Both are in the pair.
For drivers who need to move up to a six-point, the Clubman 2×2 at part 94570 is the equivalent entry-level step in the six-point category. For those who need the four-point configuration and want a higher specification with flexible end fittings, the Profi II-FE ASM at parts 20071/25071 is the professional grade alternative, also available as a pair on this site. The Lotus-specific and Caterham-specific four-points are purpose-designed variants for those cars and are covered in their own listings.
Using a HANS or FHR device? We do not recommend a HANS or FHR device with a 4-point harness. Our guide 4-Point vs 6-Point Harnesses: Which Should You Buy? explains the choice.
