Is a large bumper attached to the SU-01 chassis of the electric RC car easily enjoy with four AA batteries Star unit series.
Shape of the image of a mini four-wheel drive equipped with a roller on both sides of the bumper features.
Also hit an obstacle such as a wall or guardrail. direction is likely to change the machine. also reduces damage.
It can be mounted on the front and back.
Incorporating the 1260 ball bearing (sold separately) to the axis of the roller. the movement will be more smooth.

(ITEM 54687)
�� large bumper it equipped with a roller to the side