Beefed-Up Hardened Steel Pinion Gear Set For One-Tenth Scale RC Cars, 3.175mm Shaft, 18T 19T 20T 21T Teeth, Includes M4 Screw And Hex Key, Works With Brushless Or Brushed 540/550 Motors, Fits Traxxas Tamiya Axial Losi Arrma HPI Kyosho

Hardened Steel Pinion Gear Set for 1/10 RC Cars - 4-Piece
✔️ 4-piece 0.6M pinion set (18T-21T) for 3.175mm shafts

Designed for 1/10 scale RC vehicles like Traxxas, Tamiya TT01/TT02, Axial, Losi, Arrma, HPI and Kyosho, this CNC-machined hardened steel pinion set delivers precise 0.6M pitch compatibility with standard spur gears. The complete 4-piece kit (18T, 19T, 20T, 21T) lets you dial in top speed or torque to match track conditions and driving style. Works with brushed or brushless 540/550 motors for reliable power transfer.

✅ 4-piece set includes 18T, 19T, 20T, 21T pinions
✅ 0.6M metric pitch for precise mesh with standard spur gears
✅ 3.175mm shaft bore (0.125 in) for common 540/550 motors
✅ CNC-machined hardened steel for durability under high torque
✅ Ultra-smooth, quiet power transfer with reduced gear noise

💡What is a hardened steel pinion gear set for 1/10 scale RC cars used for?

These gears let you tune acceleration and top speed by swapping gear ratios. - enables precise gear ratio selection for different tracks and driving styles
- 0.6M pitch ensures compatibility with standard spur gears
- 3.175mm shaft compatibility fits common 540/550 motors
- hardened steel construction resists wear and supports long-term, high-torque use
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