Tamiya 14113 1/12 RC166 GP Racer Motorcycle Model KitTamiya 14113 1 12 RC166 GP Racer Motorcycle Model Kit After completion, the length is 166mm and the width is 43mm. The Dominator of the GP Circuit: HONDA RC166 From 1964 to 1965, Honda hit a slump, missing out on the series championship for two consecutive years. In 1966, Honda set out to win the overall championship in all five classesand achieved its goal. The 6 cylinder RC166 competing in the 250cc class became the center of attention. Mike