Kyosho 19-23 RC Pinion Gear - W5171

The Kyosho W5171 is a pinion gear set covering 19 to 23 tooth options, designed as a direct-fit spare or gearing change for compatible Kyosho RC models. Pinion gears are a core part of the drivetrain, transmitting power from the motor to the spur gear, and selecting the right tooth count lets you tune the balance between top speed and torque to suit different track conditions or driving styles. The KYOW5171 reference makes it straightforward to cross-check compatibility with your Kyosho model's parts list before ordering.

Key Features

• Covers 19T through 23T tooth counts, giving a practical range of gearing options from more torque-focused lower ratios to higher top-speed setups
• Direct Kyosho spare part, designed to OEM specification for correct mesh with compatible Kyosho spur gears
• Changing pinion tooth count is one of the simplest and most effective drivetrain adjustments available on an RC car
• Smaller tooth counts (19T) suit technical tracks or heavier terrain where pull-away grunt matters; larger counts (23T) favour open tracks where top speed is the priority

Compatible With

• Compatible with Kyosho RC models that specify the W5171 pinion gear in their parts diagram — cross-reference your model's exploded parts list using style code KYOW5171 to confirm fitment before ordering

What's Included

• Pinion gear set (19T to 23T options as per product specification)