Should 250 2-strokes be able to race 250 4-strokes in supercrosslive and promotocross? Here is the betamotor1905 250RX from the previous video. For those wondering what was done to it, she’s got a pipe/silencer, cylinder is ported, an ECU, etc. redbullmotorsports redbull motosportinc rdrco.inc allballsracing_ bbrmotorsports #250RX #2stroke #betamotorcycles