Kyosho VS002B Ring Gear Set(40T) RC Square Pinions you can set it from

you can set it from the transmitter using the SSL function

BB / SD Series G-Generation Zero (G-Zero)

the 581 system

GPW15C Special Motor Heat Sink (for Hang On Racer)

and some of the cars that appeared without eaves were later remodeled to the same appearance

Kyosho VS002B Ring Gear Set(40T) RC Square Pinions you can set it fromUpgrade your RC vehicle's drivetrain with this high strength ring gear set, engineered for durability and precise power transfer. The 40 tooth design delivers optimal gear ratios for improved acceleration and top end performance. Key Features: Precision cut teeth Smooth engagement with pinion gears Durable alloy construction Withstands high torque conditions 40 tooth configuration Ideal balance of speed and torque Direct fit replacement Compatible