For good name brand tires the G159 tread pattern is about the best traction tire you will find in 9R22.5
It's been a little while sense I priced new 9R22.5 tires. You may have a few other traction tire choices, but not many, and I remember thinking the G159 was the best choice.

Grigg


1951 GMC 250 in the Project Journals
1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
1952 Chevrolet 3800 pickup
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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-