Kimbrough spur gears are molded with black 4/6 Nylon plastic, because black dissipates heat into the air better then any other color – and high temperatures are not good for thermo-setting plastics. This plastic is almost three times tougher and will withstand operating temperatures 75° to 125° higher than plastics used by other R/C car gear manufacturers.
Kimbrough spur gears are full width, because a narrow or profiled plastic gear can deform under load, is weaker and less efficient. This can cause drag in the gear train and waste horsepower. The wider a gear is, the more load it can handle. The only time gear engineers narrow gears, is when there is a space limitation. Kimbrough Racing Products gears run quiet because they have the correct tooth shape and don't have to be narrowed. Choose from a variety of tooth count choices to allow you to fine tune the torque and top speed of your model.
Compatible with: Team Associated B4, B5, B5M, B6, B6D, B6.1, B6.1D, B6.2, B6.2D, B6.3, B6.3D, B6.4, B6.4D, SC5M, SC6.1, SC6.2, T4, T4.1, T4.2, T4.3, T5m, T6.1, T6.2, T5M, SC10, SC10.6