The RPM cage allows the ESC to be run with or without a fan. It encases the ESC body only, leaving the entire ESC fan free to do its job. Castle did a great job with airflow through the Sidewinder 4 and this ESC cage enhances that free-flowing air movement. Air channels along both sides of the ESC allow air movement along the sides of the case, while the low profile sides leave all of the built-in air vents on the ESC free and clear to flow air properly.

Each ESC Cage is designed to simplify ESC installation and maintenance of the vehicle. Two screws hold the entire assembly to the chassis, that’s it! No more struggling with gooey double-sided tape to remove the ESC to clean your vehicle or transfer the electronics to another car. It’s so quick, you can transfer the entire assembly from one vehicle to the next in about a minute!

RPM includes a separate, encased on / off switch mount that bolts directly to the cage in one of four locations / orientations for extreme 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.

Each RPM ESC Cage is manufactured from RPM's ridiculously tough blend of engineering grade nylons for a lifetime of worry-free performance. Each cage is molded in black or blue and backed by RPM's limited lifetime warranty against breakage.

NOTE: The RPM ESC Cage for the Castle Sidewinder 4 ESC works with Castle Sidewinder #010-0164-00, # 010-0164-01, # 010-0164-02, # 010-0164-03, # 010-0164-04, #010-0164-05, #010-0164-06 & # 010-0164-07. While the ESC Cage will fit a variety of applications, they have been tested and guaranteed to fit the following Traxxas vehicles in stock form only – Stampede 4×4, Slash 4×4, Slash 4×4 LCG, Slash 2wd, Slash 2wd LCG, & Rally. Also fits the following vehicles as long as Traxxas #3725 Mounting Plate (stock item on VXL models) is used – Rustler, Stampede 2wd & Bandit.