Improve your Tekno RC drivetrain with the TKR4175 "M5" hardened steel Mod1 pinion gear (15T) with 5mm bore. Constructed from durable hardened steel, this gear provides reliable strength, precision, and long-lasting performance for racing and off-road use. Compatible with Tekno RC models including ET48, EB48, and SCT410 series, it ensures smooth gear meshing, efficient power transfer, and consistent drivetrain performance. Upgrade your RC vehicle for better acceleration, stable speed, and enhanced overall performance with this high-quality pinion gear.