These are 5x10mm bearings that are 3mm wide. They can be used in any of Tamiya 's touring cars that are equipped with the reversible suspension system and using Double-Cardan drive shafts. Compared to the standard 5x10mmx4mm wide bearings that are normally used with the reversible suspension system, these 1mm narrower bearings allow for better clearance of the Double-Cardan swing shaft.

Note: These bearings need only be used on the front or rear inside portion of the hub carrier.