T420 framework was created and developed the centrally placed layshaft. The framework is wholly redesigned to allow for the guts drivetrain system as well as the slim mounts the long supply suspension system system. The updated design moves the key bulkheads towards the middle by 1mm, and includes mounting holes for both long supply and short arm suspension system holders allowing switching in the middle of your two designs using the same framework. The 2.0mm dense aluminum flex chassis is CNC-machined from premium Swiss 7075 T6 aluminum, then black coated and laser engraved. The ultra-narrow framework is 84mm wide and features unique cut outs that offer the chassis flex faculties perfect for numerous the traction amounts. The base of the framework is shaped to lessen contact concerning the framework as well as the ground while considering enhance cornering rate. Ideal for medium to high traction carpeting songs and high traction asphalt songs.