This is the Associated 75 Tooth 48 Pitch Spur Gear for the RC10B4 and RC10T4.
Features:
Associated spur gears are a smaller design for gear ratios used with 17.5, 13.5 and 10.5 brushless stock motors. This spur gear moves motor forward for better balance and more predictable handling.
Includes:
One 48 Pitch 75 Tooth Spur Gear
Requires:
Installation on the vehicle
Specs:
Outer Diameter: 40.7mm (1.6")
Inner Diameter: 4.75mm (0.19")
Width: 5.25mm (0.21")