Cool hand Luke .......
Anyway, I just came in from a long ride in 49 degree weather 80-90 mph hwy, and was thinking about this thread while out there. I have heated grips and decent gloves and the only thing that got cold was the index finger on both hands.
I LOVE heated grips! If you don't have them, you should.
I was wearing full face helmet, bare-ass chaps, tennis shoes, armored leather jacket and gloves. The only thing heated are the grips, I get alot of comfort just from my hands being hot. A battery heated vest under my leathers would probably allow me to ride the 40 miles to work in 30 degree weather. I do have a very tall wind screen which helps alot, those lower deflectors would probably help too. I should get some of those.