Thread: Plastic disc on wheel
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Old 08-05-08 | 01:11 PM
  #15  
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cyccommute
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Originally Posted by capwater
They are a throwback to the friction shifting days when shifting too high up the freewheel was a real possibility, serve no purpose on a bike properly indexed.
Even friction shifting derailers had limiting screws. The only reason for the disc is if a the derailer system is incorrectly adjusted. It's CYA and nothing else.
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