You don't need four wheels to get a taste of the open road. Two will do just fine. The nonprofit Adventure Cycling Association offers tools to help cyclists plan, including more than 40,000 miles of cycling routes throughout North America, with elevation profiles, turn-by-turn directions and symbols that mark bike shops, lodging and other services. Twenty-two long-distance routes, which are broken into shorter sections of about 350 miles long, are available for $14.75 each or $11.75 for those who pay a $40 membership fee.