The XB4’20 chassis was lengthened to increase stability, while maintaining the desired the chassis flex for the best balance of traction and steering. The chassis was also narrowed in the front and rear sections to create the clearance necessary for the new suspension holders and narrower geometry.

The chassis accommodates the lower motor mount and allows the motor to be placed lower in the chassis that improves the cornering speed and stability.

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.