I too feel TRYGG is the best.
They make a model sized to a specific tire size.
If you decide to go the TRYGG route, make certain to check you tires' diameter to the Tire and Rim Association standards.
My Kubota, bought new, came with R4 Titans and they ended up being 3" shorter in diameter than the TRA standard. The meant the circumference of the chains was 10" too long.
:
Trygg to there credit modified by new chains to fit my undersized tires.
Your tires are NOT on this page of the TRA book but many big dealers have the full book and likely would copy a specific page for you.
To further illustrate my point, here is Firestone's publish diameter of a 16.9 x 28 which is 56.4"
Here is my brand new Titan measuring 52.525 (52-5/8")
The TRA spec for R4 16.9 x 28 is 55.52
When choosing tires for a 4WD tractor, the ratio of front to rear tire circumference is not to be ignored risking power train damage.
Dave M7040