CNC-machined drive axle for XRAY X4F made from world-renowned HUDY Spring Steel.
 

Specially-modified high-performance drive belt.  

X4F aluminum layshaft is strategically CNC-machined to minimize rotating weight without compromising strength or integrity.  

Alu Solid Layshaft Washer secures alu solid layshaft on the motor mount.  

Alu battery holder backstop sets the battery position to adjust weight balance and secures the battery in the car.  

Graphite battery backstop is part of the adjustable battery holder for positioning batteries front-rear/left-right.  

Aluminum servo mount is attached to chassis by 2 screws and 2 centering pins for better durability and to help eliminate servo movement in hard crashes. 

The X4F servo holder works with the popular low-profile shorty batteries in the FWD class.  

Front 100g brass weight is mounted under the front lower bumper that helps to increase traction in the FWD application and makes the car easier to drive.
 

M4x7 button-head machine screw, hex drive with 2mm hex also in the bottom.