stock speed is slightly above 160mph
about 178 mph
176 mph get one and see for yourself
All stock it could do around 155 mph
220km/hr
enough...unless you want to go faster than 300km/hour
it'll top out at around 75 - 80 mph, though it will push faster speeds with adjustments
I have had mine to 168 and it still have some more to go. I would say around 175 or so.
The 2008 YZF-R6 was the first 600 to break the 170mph barrier, achieving a top tested speed of 172.34mph stock (A little over 277km/h).
OWN A 2007 R6 IN RED AND WHITE........THE TOP SPEED I HAVE HAD IS 172MPH...................SEVERAL TIMES
Depends what gsx-r you're talking about. If you're talking about the Hayabusa, then that would win in the top speed. Check it out on youtube, Hayabusa vs R1. The R6 is the smaller version of the R1. The R1 is better for track, the R6 is better for canyon and city riding. The smaller Gsx-r 600 is a good competition for the R6, but the R6 is better at corners.
yamaha r6 300 km/h
yea but why if you really want to do that go to smaller sprockets but beware for everything you lose at top speed your going to gain in torque and the bike may get to be more than what you want to deal with