Kimbrough racing products gears are full width. We do not make narrow or profiled gears because plastic can deform under load.
Gears are molded from 4/6 nylon. 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
The tooth shapes of Kimbrough racing products gears are cut with state of the art, wire electronic Discharge machines (EDM).