Minus size winter tires is the best way to reach optimal winter tire performances, especially in deep snow driving.
Tyre Pressure
High Load (HL) Tires for Electric, Hybrid Cars and Suvs
High Load (HL) Tires for Electric, Hybrid Cars and Suvs
New All-Weather Tires Outperform Some Snow Tires
What All-Terrain Tires Are Used for and How They Differ from Other Types
Tyre Pressure
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BFG Winter T/A KSI size-255/45R20 load rating- 101 speed rating-H - 04053
Wheels
Should I get smaller rims for winter tires? - The Globe and Mail
The differences between 16, 17 and 18 inch WINTER tyres tested and explained!
Winter tire size test/comparison
Tire speed rating and load index for the light truck tires
Wide Versus Narrow Winter Tires: It Doesn't Really Matter Which You Choose
Effects of Upsized Wheels and Tires Tested