Introduction of "MotoGP moto2 class" was announced in June 2008. GP Commission (Decision making body of Grand Prix consisting of representatives of DORNA, IRTA MSMA and FIM) approved to have the moto2 class to replace 250GP class. The moto2 class is totally new 600cc middle size race category in this 4-stroke demanding era.
At that point, the regulation was to use production engine (later it was changed to one-make spec class) with frame, swingarm and suspensions that are developed by chassis constructors in order to cut down the machine cost. So it's easier to enter the class.
The moto2 class was going to be one of support classes of MotoGP World Championship, and it was also expected to be introduced to regional level international races.
In Japan, moto2 class machines (prototype ones) were approved to compete in All Japan Championship with 250GP class in 2009.
MORIWAKI saw the new class as a stage for constructors to showcase their performance and great opportunity to challenge the world prominent road race, and decided to actively participate to the class as a machine developer and supplier.
MORIWAKI had released "MH80R", a road race entrance machine in 1988, combining Honda NS-1 chassis and CR80 motocross engine, and recently introduced 250cc 4-stroke single-cylinder engine purpose-built "MD250" series, and challenged MotoGP races and development with MD211VF. The over 35years of racing experience and racing machine development know-how were poured into this MORIWAKI's new challenge.
Originally developed frame and specially-made suspensions, MD600 were going to be sold to moto2 class intending teams around the world, and spare parts supply and machine setup supporting system were prepared.
Shogo Moriwaki took a role of the machine development rider.