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Speed Kart .375 Red Box Stock Restrictor Plate
.375" Red Restrictor Plate for Clone and Predator Engines
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Speed Kart .375 Red Box Stock Restrictor Plate

Part Number: 02287
Online Price: $10.00
Speed Karts .375" Red Restrictor Plate – AKRA/NKA Clone Box Stock Legal
Availability: In Stock.

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Description

Speed Karts Red Restrictor Plate – .375" | AKRA & NKA Legal Clone Box Stock


The newly designed Red Restrictor Plate by Speed Karts is engineered to be the most durable and race-legal option for AKRA and NKA Clone Box Stock racing classes. Precision-cut and hard anodized in a vibrant red finish, this plate offers long-lasting performance and easy identification, even in high-heat, high-RPM race conditions.


With a .375” bore, this restrictor plate is specifically tailored for Clone 196cc Box Stock Junior classes and may also be applicable to other restricted engine classes, such as the Predator 212 Box Stock Junior. Always check your track or series rulebook for class-specific legality and bore size requirements.


Key Features:

  • .375-Inch Bore Size
    Compliant with AKRA and NKA rules for Clone Box Stock Junior Classes
  • Hard Anodized Red Finish
    Improves durability and makes tech inspection fast and easy
  • Precision CNC Machined
    Ensures consistent airflow and top-tier performance on the track
  • Race-Legal and Track-Tested
    Trusted by karting teams across the country for reliability and consistency


Compatibility:

  • 196cc Clone Box Stock Junior (AKRA / NKA Legal)
  • Predator 212 Box Stock Junior (check local rules)
  • Other youth karting classes require .375” restrictor plates


NKA Restrictor Plate Rules

40.4.36: Restrictor Plates

40.4.36.1: 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.

40.4.36.2 Available restrictor plates, checked with blade type NO-GO gauge.

Blue: .550" Purple: .500" Green: .425" Red: .375"


FAQ

Is this restrictor plate legal for AKRA and NKA Clone Box Stock classes?

Yes, the Speed Karts .375" red restrictor plate is designed to meet AKRA and NKA specifications for Clone Box Stock Junior classes. However, we always recommend verifying legality with your local track or series.


What engines is this restrictor plate compatible with?

It fits most 196cc Clone engines in the Box Stock Junior classes and can also be used with Predator 212 engines in similar restricted classes—check your rulebook.


What’s the benefit of the red anodized finish?

The hard anodized coating increases durability, resists wear, and offers easy visual tech inspection thanks to its bold red color.

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