Hardened Steel Pinion Gear Set For RC Cars 3.175mm Shaft One Eighth Inch Hole 21T 22T 23T 24T 25T 48DP Pitch With Hex Key 5 Pieces Upgrade Kit For High Torque Brushless Motors

Sturdy steel RC pinion gear set for 1/8 in shafts (21T-25T)
✔️ 5-piece kit: 21T-25T, 48DP pitch, screws and hex key

This upgrade kit is designed for 3.175 mm (1/8 inch) shaft RC motors and is ideal for high-torque brushless setups in RC cars and trucks. Swap pinions to fine-tune acceleration and top speed while keeping proper mesh with the spur gear.

✅ Hardened steel construction for durability
✅ 3.175 mm shaft compatibility with 1/8 in motors
✅ Includes 21T, 22T, 23T, 24T, 25T pinions at 48DP pitch
✅ Set screws for each gear and a screwdriver included
✅ Start with the smallest tooth and monitor ESC/motor temps during runs

💡 What is a pinion gear set used for in RC cars?

A handy way to tune speed and torque for high-torque brushless setups. - It lets you adjust torque and top speed by changing tooth counts - It requires matching pitch with the spur gear for smooth meshing - Includes hardware for quick install on 3.175 mm shafts - Helps optimize acceleration and top speed for racing and everyday use