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RC car enthusiasts and HPI owners, this differential gear set is exactly what you need when your gears are worn out or you're doing performance upgrades. The 15/38T tooth count provides that specific gear ratio that HPI designed for optimal performance in various driving conditions. These are genuine HPI parts, manufactured to exact factory specifications for perfect fit and reliable operation.
The precision engineering is what really sets these apart from cheap knock-offs. The gear teeth are cut accurately for smooth meshing and reduced wear, and the materials are durable enough to handle the power of modified motors without stripping or failing prematurely. The 15/38 ratio works well for many HPI models, providing the right balance of acceleration and top speed for different track conditions and driving styles.
Whether you're doing routine maintenance after noticing worn gears, rebuilding a used RC car, or upgrading for better performance, having genuine HPI gears ensures everything works together smoothly. The quality is noticeable compared to aftermarket alternatives - proper hardening, precise tolerances, and reliable performance race after race. For serious RC enthusiasts who appreciate having the right parts for their vehicles, this gear set delivers the quality and compatibility you need to keep your HPI car running at its best.
4.4 out of 5