I've got something for ya... Personal stash...
I bought these tires when I first built my Ridge. I rode them maybe 3 times and I hated them with the fire of a thousand suns!

Thay have since been sitting in my shop waiting for someone to show up w/ some highly flammable liquid so that I can light them on fire and throw them over the bank... needless to say they are the perfect candidate for studding!
And if you be my friend I'll give'm to you...
Here is a pic of the tread, should be perfect to work w/ due to the really high square edge knobs...
26x2.0 Bontrager Jones Mud X
Whatcha think? Will you PLEASE take these off my hands??? PLEASE!!!