Aluminum T419 framework with unique cutout areas for increased flex. Redesigned to steer the T419 front side framework brace. The important thing brace that will be effortlessly create regarding framework with two screws removes part flex at the front end end end concerning the framework, increasing steering response and making the auto more predictable. This framework is recommended for and it is effective on medium-to-high traction tracks. (Not recommended for very-high traction conditions where #301149 - Aluminum Chassis works more effectively.) This aluminum flex framework produces more traction and makes the car quicker and a lot more an easy task to drive. Successfully raced by the factory team, this is a must have actually actually in fact for each serious racer.