If you're into WLtoys mini RC cars like the K969, K989, K999, P929, or P939, you know gears can wear out or strip. This KingVal set gives you four replacement plastic pinion gears: 15-tooth, 17-tooth, 19-tooth, and 21-tooth. Having different tooth counts lets you fine-tune your car's performance – a lower tooth count (like 15T) gives more torque for acceleration, while a higher count (like 21T) can give you more top speed. They're made to be direct replacements for the stock parts, so installation should be straightforward if you're familiar with taking your RC apart. They're plastic, which is standard for these small cars. It's always smart to have spares on hand so a broken gear doesn't end your driving session. A simple, affordable upgrade or repair part to keep your favorite mini drift or rally car running smoothly.
