betriebs- und wartungsanleitung ihres ridley-fahrrads

6.4.3. Shifting GearsThere are many different types of shifter mechanisms, each preferred forspecific types of application because of its ergonomic, performance andprice characteristics. The designers of your bike have selected the shifterdesign that they believe will give the best results on your bike. Thedifferent types of shifters and their operation are illustrated in Figures 18Athrough 18H. Identify the shifters on your bike before reading on.The vocabulary of shifting can bepretty confusing. A downshift is ashift to a "slower" gear, one that iseasier to pedal. An upshift is ashift to a "faster", harder to pedalgear. What's confusing is thatwhat's happening at the frontderailleur is the opposite of what'shappening at the rear derailleur(for details, read the instructionson Shifting the Rear Derailleur andShifting the Front Derailleurbelow). For example, you canselect a gear which will makepedaling easier on a hill (make adownshift) in one of two ways: shiftthe chain down the gear “steps” toa lower gear at the front, or up thegear “steps” to a higher gear at therear. So, at the rear gear cluster,what is called a downshift lookslike an upshift. The way to keepthings straight is to remember thatshifting the chain in towards thecenterline of the bike is foraccelerating and climbing, and is called a downshift. Moving thechain out or away from the centerline of the bike is for speed, and iscalled an upshift.Whether upshifting or downshifting, the bicycle derailleur systemdesign requires that the drive chain be moving forward and be underat least some tension. A derailleur will shift only if you are pedalingforward.CAUTION: Never move the shifterwhile pedaling backward, nor pedalbackwards after having moved theshifter. This could jam the chain andcause serious damage to thebicycle.WARNING: Never shift amisadjusted derailleur onto thelargest or the smallest sprocket. Thechain could jam, causing you to losecontrol and fall.6.4.3.a. Schalten der hinteren KettenschaltungDie hintere Kettenschaltung wird durch den rechten Schalthebelgesteuert. Sie schiebt die Antriebskette auf dem hinteren Zahnradblockvon einem Gang zum nächsten und ändert so die Übersetzung. Diekleineren Zahnräder am Zahnradblock erzeugen eine höhereÜbersetzung. Höhere Gängen zu fahren, ist anstrengender. Währendsich die Pedalkurbel einmal dreht, fahren Sie dafür weiter. Die größerenZahnräder erzeugen eine geringere Übersetzung.Es fährt sich leichter, Sie fahren aber pro Umdrehung der Pedalkurbeleine kürzere Strecke. Wenn Sie die Kette von einem kleineren Kettenrad27