Once upon a time, the manufacturers reigned supreme in MotoGP. The MSMA – the Motorcycle Sports Manufacturers' Association – determined the shape of the premier class. In the early years after Dorna secured the rights to promote Grand Prix motorcycle racing, the MSMA negotiated a monopoly over the technical regulations in MotoGP.
The rules in MotoGP are made in committee, the Grand Prix Commission, containing representatives of the four parties with an interest in the sport: Dorna as promoter, the FIM as sanctioning body, IRTA representing the teams, and the MSMA on behalf of the manufacturers. While the sporting and other rules are voted on by majority, the MSMA controlled the technical rules.
In the early years of the MotoGP era Rule changes proposed unanimously by the MSMA were adopted automatically, and the MSMA retained a veto over rules put forward by the other members of the GPC. It was the MSMA who asked for the switch from two strokes to four strokes, and the MSMA who insisted on reducing the capacity from 990cc to 800cc in 2007, when concerns were raised over the speeds of the bigger bikes.