Bikes, and TUI: Totally Useless Information

I decided that in order to be sure I can ride Courteous Mass tonight with some semblance of safety, I should put on fat mountain tires, since 99% of the time, I use 1.5" touring slicks on my mountaincommuterbeatererrand bike:
Even for running errands:
HOT SECRET TIP: The more dangerous your rig looks, the farther away the cars stay!

Anyway, here's today Totally Useless Information: the rear wheel of my bike, with a 2.1" tire inflated to 70psi and a Mr. Tuffy installed, weighs 6 pounds 10 ounces. The front wheel, same details, weighs 5 pounds 4 ounces. That's a total for wheels and tires of just under 12 pounds.

My entire road bike:
weighs just under 17 pounds with 100psi in the tires.

And finally the snow is starting: what a perfect time to take the bike out onto the balcony and clean the chain, drivetrain, and brakes!