Coil holds sufficient heat for a smooth idle

Direct replacement for compatible ARRMA differentials

- Threaded shock bodies for easy

Easy to mount on roof racks

Castle Creations B-Link 2 Blurtooth Interface Wheels Coil holds sufficient heat forCastle Creations B Link 2 Blurtooth Interface Program, update, and fine tune your Castle ESCs wirelessly anywhere. The B LINK 2 Bluetooth Interface builds on years of real world feedback to deliver faster connections, expanded compatibility, (including the Cobra Series), and a fresh, intuitive app experience. Castle's FREE APP DOWNLOAD (Castle Link 2) is readily available in the Apple App Store and Google Play! Includes: B Link 2 Bluetooth Interface