The patented SCHROTH RFR™ rotary (cam lock) buckle operates with a carbon fiber reinforced gear system. Since it operates grease free it is insensitive to dust and other environmental influences. RFR™ the abbreviation for Regressive Force Release, means the release force is reduced during release operation rather than increasing as seen with all other rotary buckle products. Therefore the RFR™ buckle meets the stringent FIA required release forces without the need of an extended lever.

The patented actuator with the recessed lever helps to avoid the risk of accidental release. The durable RFR™ rotary buckle is approximately 30 percent lighter than other products, yet it is still one of the strongest in the market. For FIA and ECE-R 16.04 (street legal) approved racing harnesses (FE models for Rally driving) it is available as a push button type buckle.