Page 362 - (DK) The Ultimate Visual Dictionary 2nd Ed.
P. 362

RAIL AND ROAD
       Bicycles                                               REAR LIGHTS    Hard outer   HELMET
                                                               FRONT AND

                                                                               shell
       ALTHOUGH ALL BICYCLES are made up of the same                        Red
       basic components, they can vary greatly in design. A                 rear
       racing bike, such as the Eddy Merckx model, with its                 light
       light frame and steep head- and seat-angles, is built for
       speed. Its design forces the rider to adopt the “aerotuck,”          Air vent
       a crouched, aerodynamic position. While a touring bike
                                                                White       Polystyrene
       resembles the racing bike in many respects, it is designed   front light  padding
       for comfort and stability on long-distance journeys.
                                                                                  Quick-
       Touring bikes are characterized by more relaxed frame
                                                                              release strap
       angles, heavy chain stays that support the rear panniers,
       and a long wheelbase (the distance between the wheel
       axles) for reliable handling. All-round bicycles, known   EDDY MERCKX RACING BICYCLE
       as “hybrids,” combine the light weight and speed of sports
       bikes with the rugged durability of mountain bikes (see                             Saddle
       pp. 358-359). Bicycles that are not designed for conventional
       road use include time-trial bikes, which have a short                       Seat post
       head tube, sloping top tube, “aero” handlebars, and    Saddle clamp
                                                                                        Cable guide
       aerodynamic tubing. Most Human Powered Vehicles         Seat-post bolt
       (HPVs) are recumbents—the rider has a recumbent
                                                             Rear brake cable
       position—which maximize power output and minimize
       drag (resistance). Essential to the safety of all   Brake-block bolt            Top tube     Steel
       riders are helmets, and both front and rear                                     (crossbar)  frame
                                                     Brake block
       lights; locks protect against theft.
                                                                             Seat      Seat tube
                                       Tire                                  stay                Down tube
                                Tire tread                                                 Water-bottle
                                                                                           cage
                             Tire wall
                                                                                          Front
                         Wheel rim                                                        derailleur
                  Freewheel sprocket
              STEEL LOCK












       Key
                          Hardened
                          steel                                                     Chain       Crank
                                                                                     ring
                                                                                               Spider
                                   Rear                                             Crank bolt
             Pick-proof  lock   derailleur                                                        Pedal
                                                                            Chain stay
                                       Pulley bolt                                                Toe clip
                                                   Tension        Chain
                                                    pulley

     360
   357   358   359   360   361   362   363   364   365   366   367