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Di2

  • 29-12-2020 7:04pm
    #1
    ciaeim
    Registered Users, Registered Users 2 Posts: 477 ✭✭


    Hi have ultegra di2 6870 rear derailleur damaged can it be replaced with 8050 rear derailleur? Thanks


Comments

  • #2
    godtabh
    Moderators, Science, Health & Environment Moderators Posts: 23,243 Mod ✭✭✭✭godtabh


    ciaeim wrote: »
    Hi have ultegra di2 6870 rear derailleur damaged can it be replaced with 8050 rear derailleur? Thanks

    I did it a couple of weeks ago. LBS did it for me.


  • #3
    godtabh
    Moderators, Science, Health & Environment Moderators Posts: 23,243 Mod ✭✭✭✭godtabh


    godtabh wrote: »
    I did it a couple of weeks ago. LBS did it for me.

    May actually have been Gen 1 di2


  • #4
    ciaeim
    Registered Users, Registered Users 2 Posts: 477 ✭✭ciaeim


    godtabh wrote: »
    May actually have been Gen 1 di2

    Not sure what Gen 1 is ! But you think 8050 can be used yea ? Thanks


  • #5
    godtabh
    Moderators, Science, Health & Environment Moderators Posts: 23,243 Mod ✭✭✭✭godtabh


    ciaeim wrote: »
    Not sure what Gen 1 is ! But you think 8050 can be used yea ? Thanks

    First Gen Di2. I think it’s 6750. Should be no issue.


  • #6
    ciaeim
    Registered Users, Registered Users 2 Posts: 477 ✭✭ciaeim


    godtabh wrote: »
    First Gen Di2. I think it’s 6750. Should be no issue.

    Thank you appreciate that ! Seems to be easier to get 8050 than 6750


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  • #7
    godtabh
    Moderators, Science, Health & Environment Moderators Posts: 23,243 Mod ✭✭✭✭godtabh


    ciaeim wrote: »
    Thank you appreciate that ! Seems to be easier to get 8050 than 6750

    I couldn’t get a like for like replacement so just went with new.


  • #8
    CantGetNoSleep
    Registered Users, Registered Users 2 Posts: 7,300 ✭✭✭CantGetNoSleep


    The Shimano website is usually very good for compatibility. I didn't yesterday for possibly changing shifters, saved a lot by realising they were not compatible with my disc calipers


  • #9
    Tea2
    Registered Users, Registered Users 2 Posts: 50 ✭✭Tea2


    ciaeim wrote: »
    Hi have ultegra di2 6870 rear derailleur damaged can it be replaced with 8050 rear derailleur? Thanks

    If you have 6870, you should be fine. 6870 (2nd gen - 11 speed) can be replaced with 8050, but 6770 (1st gen - 10 speed) can not, unless you change the front derailleur to 8050 at the same time. I did this and it worked well.

    Something to do with a change shimano made to firmware which required front and rear derailleurs to both be from either 11 speed series or 10 speed series. Annoying.

    https://fitwerx.com/converting-shimano-ultegra-6770-di2-to-11-speed/


  • #10
    a148pro
    Registered Users, Registered Users 2 Posts: 2,207 ✭✭✭a148pro


    This thread has reminded me that I have a second hand 6870 rd to sell, op text me if interested


  • #11
    ciaeim
    Registered Users, Registered Users 2 Posts: 477 ✭✭ciaeim


    a148pro wrote: »
    This thread has reminded me that I have a second hand 6870 rd to sell, op text me if interested

    What kind of money and has it much done ? Maybe send on a couple pics ðŸ‘


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  • #12
    godtabh
    Moderators, Science, Health & Environment Moderators Posts: 23,243 Mod ✭✭✭✭godtabh


    Tea2 wrote: »
    If you have 6870, you should be fine. 6870 (2nd gen - 11 speed) can be replaced with 8050, but 6770 (1st gen - 10 speed) can not, unless you change the front derailleur to 8050 at the same time. I did this and it worked well.

    Something to do with a change shimano made to firmware which required front and rear derailleurs to both be from either 11 speed series or 10 speed series. Annoying.

    https://fitwerx.com/converting-shimano-ultegra-6770-di2-to-11-speed/

    If you FD was updated it can’t be changed. If it hasn’t been updated it can as far as I know


  • #13
    a148pro
    Registered Users, Registered Users 2 Posts: 2,207 ✭✭✭a148pro


    ciaeim wrote: »
    What kind of money and has it much done ? Maybe send on a couple pics ðŸ‘

    Pm sent


  • #14
    Luxman
    Registered Users, Registered Users 2 Posts: 938 ✭✭✭Luxman


    Sorry to bring this thread back to life, I under a 8050 RD can be used in place of a 6870, however is there some problem is getting the firmware updated?



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