bicycling for fun and fitness
60 million people ride yearly 15 million people ride weekly 152.3 mph – Fastest speed on a bicycle
bicycle timeline 1870 Penny-Farthing 1888 Pneumatic tires Had big front wheel 1888 Pneumatic tires Invented by John B. Dunlop 1903 First Tour de France race 1981 Mountain bikes debut Made by Charles Kelly and Gary Fisher
cycling benefits Excellent low-impact cardiovascular workout Burn 50 calories / hour on flat road Marvel at outdoor scenery
bicycle categories Comfort Road Fitness Purpose Short rides Serious riding Long, invigorating rides Features Wide tires; Large seat Downward curving handlebars; Thin tires; Narrow seat Narrow seat and tires; Straight handlebars Price $300 $700 - $1,200 $600 - $900 Weight (pounds) 30 Less than 22 22 - 29
cycling safety tips Always wear a helmet Attach lights to your bike at night Obey traffic signals and lights