JR HG Aluminum Ball-Race Rollers, Lightweight 19mm

Reduce roller weight with this pair of Tamiya lightweight 19mm tapered aluminum rollers. Cutouts reduce mass, while the tapered profile helps a car return from the track wall.

Includes two rollers with 520 bearings, two 2 × 8mm screws, and four spacers. Each bearing-equipped roller weighs approximately 1.32g. For Mini 4WD and Mini 4WD PRO cars, with body modifications needed in some cases.