for those buying USED winter tires.. .DO YOUR DUE DILIGENCE!!!! measure the tread.... put a toonie into the grooves and if the tread comes up to the bears paw...you're good... if its along the silver and doesnt' hit the gold part... SKIP!!! GET them inspected at a tire shop for nails, holes, damage... DONT TRUST YOUR LIVES to some slut selling junk tires!!!
or just buy a tread guage... 8/32 MIN if you're buying used... anything lower may not function well in snow.
DON'T BE THIS MOTHERFUCKER: (guy from last season who hit me on granville running 50% tread all seasons on a rav4 AWD)