Tamiya Mini 4WD Special Product 13mm All Aluminum Bearing Roller Red 95577

Mini 4WD upgrade parts Machined aluminum roller with a diameter of 13 mm that expands the range of roller settings There is no rubber or plastic ring around the outer circumference of the roller, so it can be attached to the front or back. The key point is that it is about half as light as a 13mm ball bearing for rollers, at about 1.7g for two pieces. Can be installed on various Mini 4WD cars including Mini 4WD PRO