Usually between 55-60mph. Mine seems to have a sweet spot for those speeds,its really relaxing and quite. Although I have plenty in reserve if I need it. The speeds around here are 55mph on the highways. And they watch it pretty close hiding in the dark. Just as well when I'm headed to work at late night, I have to watch closely for deer along the 30miles of highway I travel.
Mine is an everyday rider and to and from work is mostly Interstate. I run 60-70. I prefer the backroad twistys and the road determines the speed.
The mileage referred to earlier is very true. Over 60-65 which is between 4000 and 4500 rpm, it goes down quickly. I have no problem twisting the wrist to get around semis or out of a dangerous situation. I have been off the speedometer several times. My Interstate registers to 90.
One big difference I have seen is when I put on new tires. Before that the bike handled OK but was a little squirrely over 65. After the new tires (Bridgestone S11 Spitfires) I am much more comfortable at higher speeds. Good rubber makes a lot of difference.
On my old 1100 I could run all day at 5-10 over posted hwy speed (which in OK is 65-75) and that engine would just sing me to sleep. Never a glitch, never a miss, never a hiccup. Now, mpg did go down a bit (yeah if you can call loosing about 1-3mpg a big loss). And that is how I ran it day in and day out. My house to work ~20+miles hwy each way at speed.
As for twistys I always found the bike handled them beautifully without feeling pushed at anywhere from 5-10 over the speed posted on the yellow warning signs (now at 10 over it was sometimes a pretty good lean, I was real comfortable with that particular bike).
I'm still comfy at 65 on the freeway, 55 on the secondary roads, just dont have that need to prove anything tomyself anymore I guess, And I dont want to know what it feels like to hit the pavement at 70 either :cheeky1: