These lightweight 13mm Aluminum Ball-Race Rollers function superb durability and are also equipped with 520 ball bearings to provide smooth rotation. In addition, these rollers have less friction contrary to the course walls and may be used for both front side and back roller setups. This specific version utilizes parts which have a weight reduced total of around 30% thanks to their shape and newly-bored holes.
• 13mm Aluminum Ball-Race Roller x2
• Attachment screws included.
• Compatible with all Mini 4WD and Mini 4WD PRO framework machines.
• Some framework and figures may require modification.