Since 40% of everyday travel in the U.S. are trips of two miles or less, choosing to bike makes plenty of eco-sense. When Worldwatch Institute compared energy used per passenger-mile (calories), they found that a bicycle needed only 35 calories, whereas a car expended a whopping 1,860. Bus and trains fell about midway between, and walking still took 3 times as many calories as riding a bike the same distance.
GERRY LAUZON IS A CYCLING ENTHUSIAST WHO EXPLAINS BIKE REPAIR SO THAT ALL CAN
UNDERSTAND IT. IF YOU RIDE A BIKE THIS SITE SHOULD BE IN YOUR BOOKMARKS.
CHECK OUT HIS BIKE REPAIR MANUAL IN .pdf FORM. THERES A LINK ON THE FIRST PAGE.
ALSO DOWNLOAD FROM THIS SITE BookBike.pdf