13mm Aluminum Ball-Race Rollers have in fact in fact excellent durability and they're filled with 520 ball bearings for smooth rotation. Also, these rollers encounter less friction against Mini 4WD system walls that would be used for both front component and rear roller setups. This popular Grade-Up component comes easily accessible in special limited-edition red colorization always decorate your Mini 4WD device.
• 13mm Aluminum Ball-Race Rollers (Ringless/ Red) x2
• built-in 520 ball bearings ensure superior smoothness of rotation, for minimal time loss.
• Screws and small elements for accessory included.
• befitting Mini 4WD and Mini 4WD professional cars create to be utilized with 13mm rollers.