Ryan Anderson is not yet 2, but he is already a veteran of the Luck Area ATV Club.
As his family prepares for its weekly trail ride through the woods of western Wisconsin, Ryan is strapped in to the Polaris Ranger, his helmet secured to the front seat with a blue bungee cord. His father explains why: Ryan's neck is too weak to support the helmet, so the cord is also needed to keep him safe.
"Any age can be on them," said Bryan Anderson, who often takes Ryan and his 4-year-old son off-roading. "You just have to drive responsibly. … The kids love it."
For those who love the great outdoors and enjoy a thrilling ride, few things equal the fun of four-wheeling. Ridership nationwide has grown to 35 million, including more than 700,000 riders in Minnesota.
But some ATV enthusiasts are gambling with their children's lives. Instead of buying off-road vehicles specifically designed for young riders, many parents are letting their children drive adult-sized ATVs that can exceed 60 miles per hour and are as difficult to control as a car.
Across the country, nearly 1,200 children have been killed and another 350,000 hospitalized after ATV accidents over the past decade, according to the U.S. Consumer Product Safety Commission. About 90 percent of the children who died were riding off-road vehicles built for adults, recent medical studies show.
"ATVs are not toys. They are very powerful and often unstable machines that need to be used very, very carefully," said Robert Adler, a commissioner at the CPSC, which regulates the ATV industry.
Four-wheelers have a high center of gravity and are prone to rolling over, leading some engineers and safety experts to conclude the machines pose dangers for drivers of any age. Consumer groups and pediatricians have pressured regulators to ban children from adult ATVs, but manufacturers have pushed back.