real Hobby Traxxas TRX-4 Brass Extended Hex Adapters. Constructed from high quality CNC machined heavy brass, these optional hex adapters are intended for the Traxxas TRX-4 and TRX-6 1/10 rock crawler platforms to increase the stance by 30mm total width and add unsprung weight to provide the ultimate stability and crawling performance.
 
Features:
Perfect fit and upgrade for the Traxxas TRX-4 and TRX-6 1/10 rock crawler platforms
High quality CNC machined brass
Enhance durability and reliability
Increase width for better crawling performance and stability
Adds unsprung weight to lower the center of gravity
Available in multiple width options
Includes:
(4) TRX-4 (+15mm) Brass Hex Adapters