Complete Bearing Kit to suit the Tamiya Mercedes-Benz Acrocs 4151 Tipper (#56366). Plaig RC V2 Premiums are ABEC 7 which means they are more precise with closer tolerances, the individual components such as the balls are manufactured to a higher standard, the races are within .001mm. V2 Premiums remain smoother for longer, outlasting any standard bearing with less chance of a failure, they are made to the highest standards available. The V2 Premium range of bearings are used by the Plaig RC racing team which consists of several current and past Australian Champions including Kyle McBride, Ryan Maker & Chris Sturdy.