The famous features of the air-cooled 6-cylinder engine, including the crank case and cylinder fin have been accurately reproduced with new parts to create a lifelike model. Super thin metal plated 0.4mm ABS resin parts precisely represent the Honda's wheel spokes. (Previous spokes thickness: 0.7mm) The RC166's famous long cowling has been produced using a slide molding process for a crisp finish. Can be assembled with 1.2mm screws. The solid rubber tires feature a triangular shaped tread pattern as seen during the 1960's.