RACETECH FORMULA QUICK RELEASE - WELD ON
Racetech Quick Release Weld-On steering wheel boss for 52 mm PCD, 3 bolt steering wheels used in single seaters. These come with a quick release bolt hole diameter of 6mm (1/4") and a slug diameter of 19mm (3/4").
Racetech were the original manufactures of this type of 52mm (2") PCD quick release coupling and were supplying these to Formula 1 teams in the 1980's. Since then the Racetech range has grown to reflect a wide variety of motorsport parts.