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  1. #1
    mtbr member
    Join Date
    Dec 2005

    which seatpost clamp/collar size for trek 69er?

    I am ordering some parts online and I don't have my trek 69er singlespeed right here.
    I want to replace the standard seatpostclamp/collar, can someone tell me the diameter?


  2. #2
    mtbr member
    Reputation: Whitedog's Avatar
    Join Date
    Apr 2008
    I just got a Trek Top Fuel 69er and I bought a 36mm per the local Trek dealer and it worked fine on my bike.

    Here's a thread that mentions 36mm on a Trek EX8:
    08 fuel ex8 seatpost QR clamp size?

    Here's a thread that mentinon Trek uses a 36.4mm clamp:
    stem size trek models

    Either should probably work on your SS 69er

  3. #3
    mtbr member
    Reputation: readycpa's Avatar
    Join Date
    Nov 2007
    It appears to me that it is the same as the front der clamp which is 34.6mm.
    (proud owner of Trek TF 69er)

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