The SFX Conversion for the X-ray T4 2020 is of a new motor mount, symmetrical topdeck. It is specifically designed for optimized flex characteristics and enhanced drivetrain efficiency. The spur gear has been slightly moved and is, therefore, absolutely centered for even better rotation and cornerspeed. The chassis sports a slightly wider rear end between the bulkhead and the rear suspension mount to decrease flex and only includes the long suspension arm mounting positions for even further optimization and more consistent flex. as well as a more stable rear.