Twin-cylinder machines to undergo weight reduction from the next SBK round at Miller Motorsports Park. For the first time in the two and a half years since the regulation was introduced, there will be a change in the new minimum weights applied to the bikes competing in the FIM Superbike World Championship. Following the official results of Race 2 held at Kyalami (South Africa), the FIM SBK Technical Director has informed that the average value of the event averages over the first six events of the 2010 SBK championship favours the 1000cc 4-cylinder motorcycles by more than 5 points (see the attached document issued by the official time keeping). As a result, from the next SBK event at Miller Motorsports Park (USA) on 29-30-31 May, the new minimum weight for 1200cc 2-cylinder motorcycles is decreased to 165 Kg, a reduction of 3 Kg as stipulated in Article 2.4.4.2 of the FIM rulebook. The minimum weight for 1000cc 4-cylinder motorcycles will remain unchanged (162 Kg).