The XB4 chassis was redesigned with the main focus to lower the CG to improve cornering speed and stability. The chassis accommodates the lower motor mount. 

Optional graphite chassis brace fits in the lower part of the composite brace connected directly to the chassis, generating more stability.  

Composite rear lower brace made from tough composite material. 

Tough composite side guards perfectly fit the chassis to seal against dirt and protect from side impacts.  

Front brace made from tough composite material.  

Rear brace made from tough composite material. 

CNC-machined graphite wire cover. 

Set of composite parts includes body mount posts, battery mounts and wing shims. 

M3x8 button-head machine screw, hex drive. Set of 10 pieces. 

M3x10 button-head machine screw, hex drive. Set of 10 pieces. 

M3x12 button-head machine screw, hex drive. Set of 10 pieces. 

M3x14 button-head machine screw, hex drive. Set of 10 pieces. 

M3x16 button-head machine screw, hex drive. Set of 10 pieces. 

M3x8 flat-head machine screw, hex drive. Set of 10 pieces.
 

M3x10 flat-head machine screw, hex drive. Set of 10 pieces.
 

M3x14 flat-head machine screw, hex drive. Set of 10 pieces.
 

M3 nylock nut. Set of 10 pieces. 

Flat washer, 3.2mm ID. Set of 10 pieces.