Aluminum T419 framework with special cutout spaces for increased flex. Redesigned to support the T419 front framework brace. The front brace which may be effortlessly set up regarding chassis with two screws removes side flex at the front end regarding the chassis, improving steering reaction and making the automobile more predictable. This framework is advised for and works very well on medium-to-high traction tracks. (Not recommended for very-high traction conditions in which the #301149 - Aluminum Chassis works more effectively.) This aluminum flex framework generates more traction and makes the automobile quicker and more straightforward to drive. Successfully raced by the factory group, this will be a must have actually for every single severe racer.