This is the Hot Racing 52T 1 Mod Steel Spur Gear for the Traxxas X-Maxx XO-1.
CNC machined hardened steel construction with black oxide finish
Number of teeth laser etched on gear for easy identification
52T 1 Mod Steel Spur Gear
Overall diameter: 2.0" (52mm)
Gear face width: 0.31" (8mm)