Lifted from an article by Julian Ryder at Motegi
Saturday, September 17, 2005
"The MSMA met on Thursday and decided the future of the 125 and 250 classes at GPs from now to 2015. The 125s will stay unchanged, as will 250s until the end of 2012. The 250 two-strokes will then be joined by 400cc four-stroke twins for two years of cohabitation before the class becomes all four-stroke in 2015. These regs will be ratified in 2008, by which time MotoGP will have an 800cc limit."