B-Link 2 Bluetooth Steam Locomotive Heavy-duty suspension arms work with

Heavy-duty suspension arms work with your existing Traxxas accessories and come in six dynamic colors for full customization

Fully independent suspension for exceptional all-terrain handling and control

TiN Coated Metric Nut Driver Bit Set (4pcs)

This is a pair of pre-mounted Trencher 2

Jason Ruona explains

B-Link 2 Bluetooth Steam Locomotive Heavy-duty suspension arms work withCastle Creations B Link 2 Bluetooth Interface 011 0181 00 The Castle Creations B Link 2 Bluetooth Interface revolutionizes the way you program and manage your Castle ESCs by giving you complete wireless control in the field. Say goodbye to bulky laptopsnow you can adjust ESC parameters, view data logs, and update firmware anywhere using the free Castle Link 2 app for iOS and Android. The B Link 2 features a secure, waterproof design thats compact