Freaking sweet man!!! how much do you figure you have into each tire for studd cost?
I saw one other person on here do something cool w/ his tires. Not a racing solution, but...
Hefe used snowmobile studs on the tires. I think they were 1.5 inches long, and stuck out maybe 3/4" out of the tread. I've been looking at doim somthing to my old YFZ tires. don't have any ice races around me, so don't need anything crazy, but it'd be nice to have something a "little more".
Always a blast running on the river in the winter after the snowmobiles track it down and give you a nice hardpack to run on