[It is a part that is useful for improving the performance and setting of the machine]

It is an aluminum roller that integrates 13mm and 12mm rollers. Normally, the lower 13mm roller makes contact with the fence, and when the machine tilts in a corner, the top 12mm roller makes contact with the fence. It exerts a stabilizer effect to prevent falls. It can be used for mini 4WD PRO and mini 4WD vehicles.

【Specs】

Aluminum integrated two-stage roller with 4 520 bearings