Metalstorm, I had a 1992 Honda Accord and had the same problem with over-sensitive ABS although my problem was on icy roads. I sometimes had to jam on the parking brake to avoid a collision. So I installed a switch in the wire that led to the ABS fuse. I presume the same could be done on the CBR 250R. I believe if the fuse is blown then the system reverts to non-ABS