When David Jones set out at age 55 on a cross-country bicycle tour in 2010, he admits that he had no idea what he was getting into.

A frequent jogger, Jones found that long-distance bicycle touring required a whole different skill set.

Older and wiser, the Vancouver, Wash., man plans to set off on a 12,000-mile bike tour around the perimeter of the US starting this spring.

His goal is to raise $100,000 for Share, a nonprofit that serves the homeless and hungry ....