JConcepts 28T Silent Speed Machined Pinion Gear for RC Vehicles (JCO2114)

Silent Speed 28-tooth, 48-pitch machined pinion gear from JConcepts is designed for 48-pitch RC transmissions, where the pinion drives the spur to set the gearing ratio, influencing speed and the drivetrain’s feel. Made from aluminum and precision-machined for durability and concentricity, it promotes a smooth, quiet mesh on the track. It uses a 3mm setscrew with a 1.5mm hex and features laser-etched sizing for quick identification when swapping parts or stocking a spare bin.

Built for race applications, this pinion pairs with compatible 48-pitch spur gears to deliver consistent performance. Available in tooth counts from 18 to 38, the Silent Speed line emphasizes precise fit and reduced wear thanks to tight tolerances and concentric machining. The aluminum construction keeps weight down while providing strength, and the laser-etched size plus secure 3mm setscrew simplify installation and on-track maintenance.