The ZeroRC RW-OP-12-1 is a specialized High Traction Differential Ball Set designed for the RW00 and RW00SR series. 
 
Key Features & Benefits:
 
As part of the SP.SPEC (Special Specification) performance tier, this upgrade focuses on optimizing the drivetrain's internal efficiency and grip characteristics:
High-Traction Design: These differential balls are engineered with specific surface properties to enhance the "bite" and consistency of the ball differential, providing more predictable power delivery to the rear wheels.
Consistent Rotation: According to ZeroRC’s design philosophy, this part helps achieve "Balanced Speed," ensuring the vehicle maintains smooth rotation when transitioning from corner entry to exit.
Precision Engineering: Unlike standard steel balls, these are selected for extreme spherical precision to minimize internal friction and heat buildup within the gearbox during long sessions.
Compatibility: Designed as a direct internal upgrade for the RW-OP-13 metal gearbox or the standard composite housing.