As technology on the new R/C vehicles gets more & more progressive, the size of the bumpers steadily decreases! RPM still believes that bumpers should act as bumpers, not dirt collectors! Therefore, we designed this bumper to extend 1/2" in front of the arms to help absorb impacts. The leading edge is swept up on a large curve to help prevent dig-ins and is wide enough to protect the hinge-pins and e-clips. The lower skid plate area is double the thickness of the stock bumper for added strength & durability.