The GPM 20Cr steel motor gear is manufactured from heat treated 20Cr material and finished with a black hardening process to improve surface hardness and wear resistance. Tooth options span 14T to 20T with a module of 1.0mm, intended for motors that accept a 5mm tooth diameter. The gear features a circular bore and is secured by two 4x4 set screws to provide dependable mechanical retention. This component is compatible with 1/8-scale ARRMA and TRAXXAS drivetrains that match the listed dimensions; confirm gear and motor parameters prior to installation.