<ul><li>Size - Teeth: 11T, Outer Diameter: 13mm / 0.51inch, Aperture: 5mm / 0.2inch, Effective Tooth Length: 19.5mm / 0.77inch, Total Thickness: 25mm / 0.98inch, Module: 1 Mod, Pressure Angle: 20</li><li>Material - The pinion motor gear is made of Stainless Steel, more stable, anti-wear, strong and durable, and durable in use.</li><li>Feature - Good machining made less rough and noise than other gears, making them roll smoothly.</li><li>Application - Good pinion gear replacement for your device.</li><li>Note - The pinion gear aperture is 5mm and the module is 1, please check the size before purchasing.</li></ul><br><br>

HARFINGTON Straight Spur Pinion Gear 5mm Bore 11T Mod 1 Stainless Steel Spur Diff Differential Motor Gear RC Car Replacement Parts