Inner hole: 1.48mm bore tight fit 1.5mm shaft, 1.98mm bore tight fit 2mm shaft , 2.28mm bore tight fit 2.3mm shaft
Easy Installation: Designed for hassle free setup, simply ensure that your car model motor shaft matches the diameter of the gear. making installation quick and easy.
Tooth Hardness: Benefit from a thoughtfully designed tooth surface, offering just the right hardness for reliable performance while minimizing wear and tear.