World Champion ACER Racing Ceramic Ball Bearing Kit for the Mugen MBX6 or Mugen MBX6T or MBX6R. Comes with the following:

14 pc 8x16x5mm ceramic ball bearings

4 pc 15x21x4mm ceramic ball bearings

4 pc 6x10mm ceramic ball bearings

2 pc 5x10mm ceramicclutch ball bearings

Oiled, not greased, with 100% synthetic SIN oil for super smooth and fast action. Uses lightweight diamond polished silicon nitride ceramic balls. Feel the difference and race faster, longer with these lightweight, fast and extremely durable ceramic bearings.

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