What is the max tire width?

The rack can accommodate tires as wide as 5” with no adapters needed. The distance is 4.77″ between the arms, but dare we say, tires are not really accurate in their dimensions? 🙂

Quik Rack Mach2: 5″ tire

The Mach2 fits the Vee Snow Shoe 2XL, which is 5.05″ wide. (stated by the manufacturer)