Oh man, we just found our winter activity of choice. The Snowrider transforms a conventional dirt bike into a snowmobile of the coolest kind. It utilizes a modified single snowmobile track to the back and adds a front ski mount for snow-thrashing fun. The two units are fully assembled, and even the mechanically inclined can use the detailed instructions to swap things out in about an hour. Mounting adapters are included to simplify the process. The result is a light, fast, and highly maneuverable snow machine that will have your snowmobiling pals jonesing for a turn. Putting things back in order when spring rolls around should be equally simple.