Heavy Duty Hardened Steel Pinion Gear Sets For One-Tenth RC Brushless Motor, Mod One Pitch, 21T 22T 23T 24T 25T, 5mm Shaft, Includes Hex Key, Durable Metal Gears For Smooth Power Transfer And Longevity

Heavy Duty Hardened Steel Pinion Gears for 1/10 RC Trucks
✔️ Mod 1 pitch, 21T-25T range, 5mm shaft, set of 5 gears incl hex key

These rugged, hardened steel pinion gears are designed for 1/10 scale RC trucks and buggies that use a 5mm shaft. Use them to improve power transfer, durability, and drivetrain life in high-torque brushless setups.

✅ Mod 1 pitch gears: 21T, 22T, 23T, 24T, 25T
✅ Hardened steel with nitriding for max wear and fatigue life
✅ 5mm shaft compatibility; gear length 14mm for proper mesh
✅ Includes 5 screws and hex key for quick setup
✅ Optimized for smooth power transfer and cooler operation in 1/10 RCs

💡 What is a pinion gear used for in RC cars and how does it affect performance?

A quick, handy explanation: a pinion gear engages the spur gear to set speed, torque, and motor temps.

- Changing teeth count changes acceleration and top speed.
- Smaller pinions boost torque and help cooler motor temps.
- Pair with the right spur gear to balance speed and control.