I missed that they were mud terrains, makes complete senseEspecially once snow gets compacted the MTs were totally ineffective on my very steep switchbacked driveway. They slipped and spun a little bit in powder too but compact snow and then the ice underneath the MTs could not grip at all (it was also around 20 degrees). Very scary going down on steep angled curves when all four tires break loose let me tell you, even when at very low speed. The oem bridgestones are a night and day difference, the wheels barely spin going up and dont slip going down