Absolutely you can air down. 5 lbs is better than nothing, but if you want to flatten your tires out a little more then you could go down to 30psi. Be really careful you don't roll the tire off the wheel going around a corner and hitting a dry spot. Any amount you increase the surface area of your rubber on the pavement/ice=better traction.
p.s. please don't hold me responsible if you manage to pile it up in the ditch. K? thanks.
And speaking of snow, we're getting a huge surprise snow storm this morning. this is great!
