Non-essential material below the engine, fuel tank, and diffs was removed to allow for the lowest possible center of gravity and appropriate chassis flex.
All screw holes on the bottom of the chassis are countersunk, allowing for a very smooth chassis underside with no protruding screw heads.
The chassis is a vital component for Multi-Flex setting adjustment, using different screw positions to mount the side guards and radio box plate.
Must be used with #351156 XB9 13 Composite Chassis Side Guards L+R.
Due the nature of the aluminum material and the machining process, it is normal that the chassis may be slightly bent in the longitudinal direction.