I dont believe those are Radials, they make a newer better tire called the Bearclaw HTR, which from the Reviews ive seen, especially on the Can-am site im on, people really like them alot. Ive got the HD2 wheels on my Viking and my Can-am, Very happy with them. Also, several people have ordered the HD2 wheels ,and had issues with the center caps not working on the Viking, I didn't have any issue with it. But, others did, and had to either call STI, and they sent them some for the Viking free, or people that ordered from Rocky Mountain ATV, had the correct caps in stock. I ordered all my tires/wheels from Rocky Mtn ATV. Awesome place to deal with.