Schwalbe Marathon Winter
700Cx40mm
Studs and knobs
Tubed
25/30PSI (depends)
30lbs of bike, 175# of me.
Snow/ice
How hard I run SMWs depends on the weather. Running them 50PSI+ is overkill....even running them 40/45PSI is awful hard unless the trails are quite clear or the snow is fresh and unpacked....40/45PSI, and I'll fishtail on ice, but is fine for sleet without ice underneath. 25/30 is reasonable on ice, maybe a bit lower.