AURA - ultra high performance gearbox bearing kit - mid motor (TLR 22 2.0, Kyosho RB6, Serpent SRX2, Yokomo BMax2)Steel 2.6 x 6 x 3mm diff thrust bearing (Kyosho or Yokomo)
Revolution - high performance bearing kit - 22 pieces (Kyosho MP9e)
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