That's a long commute!Bike hasn't been lowered yet so I still get to play with it. LOL Anyway I decided to commute today on it. Distance is about 58 miles with two 3rds of that on twisty mountain roads, the rest is freeway miles. It was a little chilly, 43f at the coolest point. Im 5'11" and 200ish lbs, full gear with Bluetooth helmet and music. I have the rear shock on the softest setting and there is hardly any sag when I sit on the bike. The rear suspension felt about right the entire ride. I could probably tighten it up one notch from softest but Ill leave it for now.
The bikes sweet spot seems to be 55 to 60 mph, the motor is hardly working, its buttery smooth and very little if any vibrations. 60 to 65 is Ok, 70 is where things start to get revy, noisy and windy. 75 to 80 just really wasn't all that enjoyable with the stock windscreen and the engine sitting at 10,000 rpm LOL. In town unless you come to a complete stop there is no need to shift below 3rd gear. The bike is almost more fun to short shift at 7000 or so and roll back in the throttle. Its a good thing we are getting old and speed is no longer a requirement for enjoyment. Seriously, anymore I enjoy poking around country roads at 50 mph or less as much as any other kind of riding. I think I averaged about 60ish MPG for this leg.
I agree with your preliminary assessment - it's a great 60mph (or less) bike and silky smooth too.
I'm running taller gearing...14T-43T front and rear sprocket plus a "taller" rear tire so revs are about 10% lower. This makes hwy riding a little less buzzy.