Aluminum T419 framework with unique cutout areas for increased flex. Redesigned to support the T419 front framework brace. The leading brace which may be efficiently create regarding chassis with two screws eliminates side flex at the front end end regarding the chassis, improving steering reaction and making the car more predictable. This framework is preferred for and works well 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 automobile quicker and much more simple to drive. Successfully raced by the factory team, this will be a must have actually for each severe racer.