The RPM ESC Cage is designed to simplify ESC installation and maintenance of the E-Maxx, E-Revo and Summit, as well as adding versatility by allowing quick removal of the ESC. The cage encases the ESC body only, leaving the ESC fan free to do its job. Furthermore, they left air channels along both sides of the ESC to allow air movement along the sides of the case, helping to keep the ESC cool.
With the stock Traxxas ESC, there's no solid mount available when you need to remove the ESC fan, like when you're running in the wet or in the snow. That's not a problem with the RPM ESC Cage. Simply remove two screws, unhook the fan, reinstall those two screws and you're off; with the solid assurance RPM's Cage is still holding tight to that valuable Castle ESC.
They include a separate on / off switch mount that bolts directly to the cage in one of two locations for extra versatility. Since the switch attaches to the cage, no extra time is needed to remove it during maintenance or if you decide to swap the ESC between vehicles.
RPM's ESC Cage fits the Castle Mamba Monster X & Mamba Monster 2 ESCs, as well as the Traxxas MXL-6S ESC and fits in the stock location on the Traxxas E-Maxx, E-Revo and Summit.
Each RPM ESC Cage is manufactured from a ridiculously tough blend of engineering grade nylons for a lifetime of worry-free performance. Each cage is molded in black and backed by a limited lifetime warranty against breakage.

Tech Notes: The RPM ESC Cage for the Mamba Monster 2 & Mamba Monster X series ESCs works with Castle #010-0108-00, # 010-0108-01, # 010-0108-02, # 010-0145-00, # 010-0145-01 & # 010-0145-02 as well as the Traxxas MXL-6S ESC #3377. It has not been tested to fit on the original version of the Mamba Monster ESC. While our ESC Cage will fit a variety of applications, they have been tested and guaranteed to fit the following Traxxas vehicles in stock form only-E-Maxx, E-Revo & Summit.