GDS Racing hight quality hard steel pinion gear. Comes with adapter, fits 1/8" (3.175mm) and 5mm both sizes shaft.
Fits 1/10 RC Crawler, 1/14 RC Truck, Axial SCX10, etc.
48P
20T
Inner Diameter/Bore: 3.175mm 1/8"(with adapter) / 5mm(without adapter)
Outer Diameter: 11.5mm
Height: 10mm