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Road bikes vary only slightly between pure race machines with quick-handling, aggressive geometries to more upright, laid-back geometry best for long tours and century rides (a “century” being 100 miles). A classic goal of many riders is to complete a century – and yes, it can be ridden on any type bike, but a road bike will simply get you there much faster. Road bikes used to be known as uncomfortable – a major reason why they fell out of favor with many people. They used to be set up with very low, narrow handlebars and very long top tube which forced the rider into a low, stretched out position (fine for short races, but generally uncomfortable). Modern road bike geometry puts all riders, even racers, more upright and more compact (less stretched-out). Ironically, this upright position is faster because of improved biomechanics. Handlebars are wider and more ergonomic, offering the rider improved breathing and hand comfort. Some bikes come with a traditional double chainring (for strong riders); some come with a triple chainring that offers easier gears for climbing; and recently, the “compact double” has come on the scene, offering gearing similar to that of the triple, but with the better performance and lighter weight of a double. |
Road bikes saw a huge surge in popularity when Lance Armstrong was dominating the Tour de France. Lightweight frames and components make for a very fast ride. On any summer weekend in an area where road biking is popular, expect to see hundreds of riders strung out along the road in a parade of colorful jerseys. 
