VEXpro CIM Motor Gears with Mounting Hardware - VEXpro 217-3107, This 11-tooth 20DP steel CIM motor gear from the VEXpro range reduces weight and rotational inertia of your gearbox. The teflon-infused ceramic coating greatly reduces the friction of the gearbox at the initial motor reduction where drag has the most effect on the system. For applications requiring a bit more torque without changing the whole gearbox, this 11t gear w/12t centre distance will actually fit with the same spur gears as a standard 12t CIM motor pinion without changing mounting holes. VEXpro 217-3107 11t 20 DP CIM Steel Gear with Mounting Hardware