Aluminum T4F framework increases security, provides better control and makes the car better to drive in high-traction conditions. Redesigned to allow for the center drivetrain system therefore the slim mounts the long arm suspension. The layout moves the primary bulkheads towards the middle by 1mm, and includes mounting holes for the long hands Extensively tested and recommended for medium-high and high-traction songs, this ultra-narrow chassis is CNC-machined from 2mm premium Swiss 7075 T6 and it is in addition black colored coated.