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Chainrings - Shimano A or B type ???

Discussion in 'Bicycle Mechanics and Repairs' started by Commuter, 21 Jan 2008.

  1. Commuter

    Commuter New Member

    I need a couple of chainrings - The website offers Shimano A or B type

    What is the difference ??
     
  2. TheDoctor

    TheDoctor Man-Machine Staff Member

    Location:
    Stevenage
    I think it's referring to the 42T or so ring and there's different ones for the inner of a double, or the middle of a triple. Does the Shimano website have labeled diagrams of your chainset?
     
  3. Read your old rings.