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1 definition by mygsxrisfaster

 
1.
R1
typically bought because one of the best riders of all time, Valentino Rossi, rides an M1, the prototype 800cc machine.

most R1 riders think that since Rossi has won more championships than any other rider in MotoGP history that the R1 is holier than all other bikes.

yet you will constantly see GSXRs, CBRs, and Ninjas passing R1s at every trackday you attend.
that R1 rider was making such horrible lines that he almost crashed into me as i was passing him on the outside on my GSXR
by mygsxrisfaster June 01, 2009