History of Sport Bikes

Come with almost complete engine enclosure.[citation needed] Standard - the rider leans forwards slightly ("Tourer" motorcycles use this position). The rider benefits from freedom of head movement, good visibility in all directions, and easier use of the feet while moving through stationary traffic. However, high speeds in this position leads to strain on the wrists, uneven roads lead to strain on the back, and extra exposure to the wind leads to both higher fuel consumption and a higher wind-chill factor. Many of these motorcycles now have some form of full fairing and will often come with panniers as OEM.[citation needed Cruiser - the rider sits at a lower seat-height with the upper torso upright or leaning slightly rearwards. Legs are extended forwards, sometimes out of reach of the regular controls on cruiser pegs. This position may suit older riders better, allowing more comfortable circulation in the legs. High speeds are not really practical, and it is difficult for the rider to rise from the seat on encountering speed bumps and other road imperfections. This position was traditionally associated with extended or "raked" front forks but these were not particularly stable at speed and led to bigger turning circles. In some cases they were inadequately stiff and strong. These models may have windscreens but are less likely to have fairings or enclosure.[citation needed] Important factors of a motorcycle's ergonomic geometry that determine the seating posture include the height, angle and location of footpegs, seat and handlebars. Likewise, factors in a rider's physical geometry that contribute to seating posture include torso, arm, thigh and leg length, and overall rider height.