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The Speed Kart .500" purple restrictor plates are hard anodized in a brightly purple finish for durability. This restrictor plate is designed for the 196 Clone Box Stock for other classes, i.e., Predator 212 Box Stock; check with your track's class structure and legality rules.
NKA Restrictor Plate Rules
40.4.36: Restrictor Plates
22.214.171.124: Modification of the restrictor plate is prohibited. The anodizing shall not be removed around the holes. The plate must be flat; holes must be as produced with no rounding of the edges. All holes must align perfectly with a stock ARC plate. If a restrictor plate is used, there must be a gasket on both sides.
126.96.36.199 Available restrictor plates, checked with blade type NO-GO gauge.
Blue: .550" Purple: .500" Green: .425" Red: .375"