This is a Hot Racing 32 Pitch Hardened Steel Pinion Gear, for motors with a 5mm diameter shaft. Features: CNC machined Hardened steel to increased wear resistance and improve fatigue life Nitrided to enhanced hardness corrosion resistance

The Hot Racing Steel Mod 1 Pinion Gear is compatible with 1/8 and 1/10 Scale Cars that use Mod 1 Gearing. Pinion has a 5mm bore, and is only compatible with motors that have a 5mm motor shaft. Choose tooth count from the pull down menu above.

Pilots and drivers enjoy more Smart benefits with Spektrum™ Smart G2 30C LiPos. Not only are charging parameters and performance data stored and uploaded automatically to Smart chargers, but no balance lead is needed — just one easy IC® connection!

The Spektrum Firma Sensored 2-in-1 System is specifically engineered to be used with 10th scale Crawlers and Scalers.