Need help with seat part.

Discussion in 'Cycling Training' started by Frinton, Mar 16, 2006.

  1. Frinton

    Frinton New Member

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    I have a Giant OCR2 (MY2005). I need a new seat-post clamp and cannot figure the size. I called 10 different Giant dealers and got 7 different answers. The seat post is 27.2 millimeters and there is a metal shim in the seat tube. Does anyone have an OCR model that knows the answer to my problem?
     
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  2. gclark8

    gclark8 New Member

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    Do you not have a vernier caliper to measue with?
    It should be the same diameter as the front derailleur clamp, 28.6mm or 31.8mm, probably the latter if it uses a shim. (some Giant MTBs are 34.9)
     
  3. Frinton

    Frinton New Member

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    For anyone that wants to know, it is a 34.9.
     
  4. gclark8

    gclark8 New Member

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    Thanks for the reminder, I picked one up from my LBS on the way home today!! :D Yes, 34.9, allen key type.
     
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