Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 41. Chapters: Bicycle helmet, Bicycle suspension, Bicycle helmet laws, Bicycle gearing, Bicycle lock, Cycling shoe, Cycling jersey, Bicycle trailer, Freddie Grubb, Trailer bike, DW-link, Bicycle rollers, Kryptonite lock, Bicycle trainer, Cycling glove, Cycling shorts, Bicycle stairway, Saddlebag, Bicycle basket, Casquette, Reynolds 531, Red jersey, Ice sock, Moser Cicli, Trouser clips. Excerpt: A bicycle helmet is a helmet intended to be worn while riding a bicycle. They are designed to attenuate impacts to the skull of a cyclist in falls while minimizing side effects such as interference with peripheral vision. There is an active scientific debate, with no consensus, on whether helmets are useful for road cyclists, and on whether any benefits are outweighed by their disadvantages. The debate on whether helmet use should be enforced by law is intense and occasionally bitter, often based not only on differing interpretations of the academic literature, but also on differing assumptions and interests on the two sides. A bicycle helmet. "Hairnet" helmetA cycle helmet should generally be light in weight and provide ample ventilation, because cycling can be an intense aerobic activity which significantly raises body temperature, and the head in particular needs to be able to regulate its temperature. The dominant form of helmet up to the 1970s was the leather "hairnet" style. This offered acceptable protection from scrapes and cuts, but only minimal impact protection, and was mainly used by racing cyclists. More widespread use of helmets began in the U.S. in the 1970s. After many decades, when bicycles were regarded only as children's toys, many American adults took up cycling during and after the bike boom of the 1970s. Two of the first modern bicycle helmets were made by MSR, a manufacturer of mountaineering equipment, and Bell Spor...