ocr: DERAILLEUR GEARS FTHE PEDALS ofa bicycle drove the wheels SHIFTER Ldirectly, the bicycle would move too slowly. LEVER - In fact, the pedals move the wheels via gears 80 DERAILLEUR - linked speeds.A by a simple chain. Most gear-change bicycles have mechanism, at least of five gears fixed to the rear wheel. This gives - - the cyclist a choice of gear ratios for different GEARS called a derailleur, moves the chain from one gear to another. LOW GEAR MIDDLE CHAIN GEAR R HIGH GEAR - - SHIFTER CHAIN RING F - - 1 .11
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