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  1. #1
    RoadBikeReview Member
    Join Date
    Dec 2013

    Internal Seatpost Mount- Di2

    I have a 2015 Felt AR1 and it was originally built up with Sram Red, but i am converting to Ultegra Di2. This setup requires an internal seatpost mount for the battery. Does anyone know or can link me to a picture of what the internal seatpost mount for the Di2 looks like?

    My LBS said i should have it, because it came with the bike. But i cant seem to find it, or actually i am not sure what i am even looking for.

    any help would be appreciated!

  2. #2
    RoadBikeReview Member
    Join Date
    Jul 2014
    Check out the owners manual:

    Starting at page 10 it shows the seat post assembly, the little fork thing is the battery mount.

  3. #3
    RoadBikeReview Member
    Reputation: SilverStar07's Avatar
    Join Date
    May 2011
    Also if you order Felt part# 911024 it will come with a battery mount. That is the kit to convert a mechanical AR Frame to electronic. Well you really don't need the kit but it has all the little frame plugs that cover the entry/exit holes for the shift cables that are no longer needed.

    2015 Felt AR3 upgraded to Ultegra 6870 Di2
    2011 Specialized Secteur Elite Apex -Just about how I want it
    2005 Iron Horse MK3 Expert - many years of trail duty and still my go to Mt. Bike.

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