The weather reports said we would have "black ice" , and we did, in abundance. So last night, I got my mountain bike ready. I had to put the studded tires on. I had previously taken the studded tires off and replaced them with slicks , back in August, while my road bike was waiting for parts (striped headset) .
The studded tires , by the way, are IRC 26x2.125, they don't have a lot of studs, only every other knobby has a stud. IRC is the International Rubber Company.
I pumped the tires up to 44psi rear and 42 psi front, the rating says 40 - 50. I wouldn't want to make them too hard, or the studs won't be touching the road, they are offset , not on the centerline of the tire.
It was really scary last night, with lots and lots of black ice. We had about an inch or two of wet snow yesterday, while it was around 34 degrees F. The temps then plummeted after sunset.