i've had mine for awhile, and if i really open it up, its really, really hard to hold on to. your hands start to come off the grips. all the litre bikes are extremely fast and all are within hundredths of seconds of each other in lap times and within a mile or two in top speed. they can all hit the pc top speed (300 km) so just get the R1 for looks. if you think you're ready, than get it.