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33 Hub shifting system
33.1 Method of operation
The hub shifting system is installed in the rear wheel hub and operated by using a twist-grip
shifter with a gear indicator on the right side of the handlebar.
The number of gears depends on the model.
33.2 Operating the hub shifting system
• To shift up or down a gear, turn the twist-grip shifter in the desired direction.
• If you have never used a hub shifting system or are unsure how to operate it, ask your
specialist dealer to show you how.
33.3 Checking the hub shifting system
• Check the components of the hub shifting system regularly to ensure that it continues
to operate correctly and to prevent unnecessary wear.
- Make sure that the chain, chain rings and gear cables are undamaged.
- Check the chain tension: The chain should not sag.
- Lift the rear part of the bicycle so that you can move the rear wheel and turn the
pedals to set the rear wheel gently in motion.
- Shift through all the gears: Shifting should be easy; there should be no blockages or
unusual noises.
• Contact your specialist dealer to:
- replace any damaged or worn components on the hub shifting system and re-adjust
the hub shifting system again afterwards.
- to check the hub shifting system and adjust it, if necessary, if you notice any irregu-
larities during the check.
50
GEAR SHIFT SYSTEM
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