I have had mine to 168 and it still have some more to go. I would say around 175 or so.
about 178 mph
stock speed is slightly above 160mph
OWN A 2007 R6 IN RED AND WHITE........THE TOP SPEED I HAVE HAD IS 172MPH...................SEVERAL TIMES
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
the 2007 yzf r6 gets 38 MPG (average)
it'll top out at around 75 - 80 mph, though it will push faster speeds with adjustments
The Yamaha R6 is a 600cc class sport bike, but technically has 599cc's so that they may be used for races requiring bikes to be under 600cc.
Around 130hp
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).