3RACING 3RAC-PG4821 21T 48 Pitch Pinion Gear - 7075 Hard Coated  [3RAC-PG4821]

Reliable 21T 48 Pitch Pinion by 3RACING

The 3RACING 3RAC-PG4821 offers a compact, high strength pinion made from 7075 aluminium with a hard coating that improves abrasion resistance for consistent performance across off road and on road use.

Compatibility and Drive Feel

Designed for standard 48 pitch setups, this pinion provides predictable engagement with spur gears, helping reduce vibration and keeping throttle response crisp on a variety of 1/10 models.

Benefits of 7075 Aluminium and Hard Coat

7075 aluminium provides a strong, lightweight base while the hard coat reduces surface wear. Together they help maintain tooth profile and gear accuracy over time.

Installation Advice

Check motor shaft size and pinion bore fit, then set a correct mesh using a small shim or paper method if needed. Recheck mounting screws after a few runs to maintain proper alignment.