RPM Traxxas Electric 2WD Motor Protector, Blue Designed to increase durability Replaces weaker stock components Proudly made in the USA The RPM Motor Protector cannot be used in conjunction with a Slash rear bumper or Traxxas wheelie bar Rear bumper mount/wheelie bar mount (Traxxas #3677, RPM #80902, or #80905) must be installed prior to installing the RPM Motor Protector