I can see where trying to calculate the specific commuting range is difficult. The slower my trip, the more range I get. When I coast downhill, I get more range. There are many variables that affect range.
I weigh close to 205 .lbs with my riding gear on
. I have many hills and on the few flat areas I try to go 45mph - 55 mph for at least five miles of my total commute. My average cruising speed is about 35 mph during my commute. I have to come to a complete stop about 15 times for stop signs/stop lights each way.
Today, I went out for lunch and a haircut which will make my commute about 30 miles out of last night's charge with some miles to spare.
I have about 500 miles on my bike and I know I could have done a better job to condition the batteries for more range.
I tested my top speed on the highway last week and I think I came close to 65 mph (certainly over 60 mph). I do not think my weight makes any difference to the quoted performance specs.
Have you signed up with Brammo for a test ride?