MonacoRC MTC2 ball bearing ZZ kit
MonacoRC have this Japanese premium quality ball bearing ZZ kit for the Mugen MTC2. Comprising of a total of 12 ball bearings with metal shield on both sides (ZZ), there are four 10x15x4mm and eight 5x10x4mm bearings, with all lubricated with oil instead of grease in order to have immediate high speed and best performance.
Source: MonacoRC [monacorc.com]