This set of ball bearing-equipped rollers enable fast performance for your Mini 4WD racer! This specific set features a new design compared to previous releases.
Rollers with ball bearings give superior smoothness for more efficient speed and potentially faster lap times!

• 19mm aluminum rollers x2
• Rubber rings x2
• Rollers are fitted with 520-size ball bearings for superior smoothness.
• Screws and spacers included.
• New design compared to previous rollers.
• Compatible with Mini 4WD and Mini 4WD PRO cars.