Mugen Seiki have two new ball bearings sets for the MBX7R available. First up are 8x16x5mm NMB ball races, they improve the drivetrain efficiency by creating a smoother operation compared to the kit bearings. Also new are 5x10x4mm NMB bearings for the clutch of the MBX7R, MBX7 and MBX7T. The high-quality ball races improve the clutch action and make for improved efficiency. Both the 8x16mm and 5x10mm bearings sport metal shields and come as 10-piece sets.