Aluminum T419 framework with unique cutout spaces for increased flex. This chassis is recommended for low-to-medium traction tracks since it generates more traction. (not advised for high- and very-high traction conditions in which either the #301149 or #301150 chassis work better). Leading brace which is often easily installed on the framework with two screws eliminates side flex at the front of this framework, improving steering reaction and making the vehicle more predictable. Effectively raced by the factory group, and employed by Bruno Coelho to win the World Champion name, this really is a must have actually for each serious racer.