It began as a way for cyclists to ride year-round through the harsh winter months. Today, the sport of snow biking has exploded, and with it on-snow races are popping up all over the continent. Here are eight of the most epic events around this year. —Amy Oberbroeckling

Iditarod Trail Invitational — Among the most remote races in the world, the Iditarod Trail Invitational is also billed as the world’s longest human-powered winter ultra. The race follows the famous Iditarod Trail in Alaska, giving racers the option of going for 350 miles or completing the whole trail and racking 1,100 miles under the wheels through remote Alaska in the black-cold heart of winter. Race starts February 24, 2013.

Arrowhead 135 — Outside of Alaska, Minnesota’s Arrowhead 135 is about the most grueling fat bike race around. Top racers from all across the world gear up each winter to pedal 135 miles along the Arrowhead State Trail during deep northern Minnesota winter where temps dredge to minus-30 F or further below. 2013 marks the 8th year for the race, beginning with 10 entrants in 2005 to about 135 starters in 2012. Begins on January 28, 2013, and racers get a little less than three days to make it to the end.

The Frosty Bottom 50/25 — If you’re looking for a shorter Alaskan adventure the Frosty Bottom 50/25 is a good fit. The annual winter ride, held entirely on the multi-use trails around Anchorage, gives racers the option of calling it “good” at 25 miles. Hardcore bikers retrace their tracks to finish a solid 50-miler on the snow. Race rolls off on January 5, 2013.




