Hardened Carbon Steel RC Pinion Gear Set 5mm Bore, 12T-18T, Direct Replacement For TRAXXAS Losi 1X10 And 1X8 RC Cars, Compatible With 540 And 550 Motors, Built Tough For Power, Durability, And Smooth Shifts

Heavy-Duty 5mm Bore Pinion Gear - Single for 1/10 & 1/8 RC Cars
✔️ 5mm bore, 12-18T, M1.5 module, hardened steel, fits 540/550

This hardened carbon steel pinion gear is designed as a direct replacement for major RC models and fits 5mm motor shafts, making it ideal for 1/10 and 1/8 scale cars on tracks and basements.

✅ 5mm bore diameter ensures snug 5mm shaft fit
✅ Hardened medium carbon steel builds durability and torque handling
✅ DIN 6h25 precision level for smooth mesh with spur gear
✅ M1.5 module with 12T-18T tooth range for precise gearing
✅ Direct replacement for TRAXXAS, ARRMA, LOSI 1/10 and 1/8 scale RC cars

💡 What is a pinion gear used for in RC cars and how does it affect performance with 5mm shafts and 540/550 motors? A handy intro sentence. - It sets the gear ratio with the spur to control acceleration - Proper mesh reduces wear and noise while improving efficiency - Material and heat treatment increase durability under power - Correct bore ensures a snug fit on 5mm motor shafts