Does anyone else have ice tires for their mtn. bike? I made a pair of studded tires with roofing nails. I prepunched holes through the center of the knobs, pushed the nails in from inside. I used an old tubular tire, cut the stitching open, laid it out flat to use as a liner. Once the tire was inflated, I cut the roofing nails down to about 1/4 inch with a bolt cutter. It's a lot of work, but you only have to do it once.
I know IRC made studded tires, but they had very few studs. My tires have 200 nails each and work great. They get dull after a while because the nails are aluminum, but they can be sharpened with a dremmel.
The window for ice biking is pretty short. You have to have a solidly frozen lake, but with little or no snow on it. Or you could just find a nice wind scoured lake like Cascade.
The best time I had with them was a bunch of years ago in Mohonk. There was snow followed by rain, then a freeze. The carriage roads were a skating rink. I rode from the steel bridge to the Mtn. House. Rode through the Mtn. House grounds on a bulletproof crust over undulating snow (heehee). Was just dying to have Security come after me, but I think they knew better. Then up the stairs to Skytop. I was zooming downhill and railing around turns next to death drops on solid ice with more traction then you ever get on dirt. Too much F*%#&g fun. Oh, and those instep crampons work great so you don't bust your ass if you put a foot down.
Just another Mike on Gunks.com