CNC-machined from high-quality Swiss 2mm 7075 T6 aluminum, the chassis is strategically machined in low-stress areas to make it as light as possible without affecting strength or rigidity; and it is additionally black-coated for increased lifespan The chassis is updated to accommodate bulkheads with Horizontal Split Design (HS) and the tweak-free Quick Battery Holder. Fits XB4'21
