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BMC ALR: how to adjust the seat

Hi, I just bought a BMC teammachine alr and I wanted to know how to adjust the seat. As it has an integrated seatclamp, I tried to turn the screw under the frame but I can't be moved. Also there is a little hole on top the the frame but I don't know what is it for. Thank you for your help. (sorry for the english, I'm french)

Under the frame:


Top:

Posts

  • oliversolivers Posts: 2
    edited December 2019

    Hi, I just bought a BMC teammachine alr and I wanted to know how to adjust the seat. As it has an integrated seatclamp, I tried to turn the screw usps tracking under the frame but I can't be moved. Also there is a little hole on top the the frame but I don't know what is it for. Thank you for your help. (sorry for the english, I'm french)

    Under the frame:


    Top:

    I also need help with the same.

    Thanks in advance
    Regards,
    Oliver
  • pilot_petepilot_pete Posts: 1,981
    Does this help?

    https://www.bmc-switzerland.com/media/downloads/download/Teammachine_Seatclamp_EN.pdf

    Looking at the pictures, it would appear that you loosen the bolt underneath the top tube and then give it a tap with a drift and hammer to knock the wedge out slightly as it will be wedged tight against the seatpost. You might be able to free it without a drift by supporting the bike firmly and carefully knocking the seatpost out with a rubber mallet.

    PP
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