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Fitting ultegra RX-800 deraileur to a Pinnacle Arkose

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  • December 26, 2018 at 2:55 pm #29219
    DoctorFish

    Hello,

    I’ve just spent some time fitting an ultegra RX-800 to my Arkose.  It doens’t seem to play that friendly with the mech hanger.  Does this look right?

    The original mech was a 105.

     

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  • December 27, 2018 at 1:16 pm #933323
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    DoctorFish
    CXR94Di2 wrote:
    You’ll enjoy the quiet chain with having a clutch.  

    It is very quiet!  I was surprised at the difference even just riding on roads.

     

    December 27, 2018 at 1:14 pm #933321
    0
    DoctorFish

    Joe Totale wrote:

    Joe Totale wrote:
    Get rid of the plastic disc of shame!!!

    Thank you for your valuable input.  I have taken it off my road bike, but considering this bike gets ridden down various bumpy tracks I thought I’d leave it on.

    Can you explain what harm it is doing?

    December 27, 2018 at 1:10 pm #933319
    0
    DoctorFish
    Canyon48 wrote:
    Looks like my Ultegra RX mech 🙂

    They (including the new R9100 R8000 R7000 rear mechs) do sit very differently to the “old” style 5800/6800.

    Great, thanks. I’ve been for a 50km test ride on roads and gravel tracks and it all worked very well.  🙂

     

    December 27, 2018 at 11:51 am #933317
    0
    Anonymous

    Joe Totale wrote:

    Joe Totale wrote:
    Get rid of the plastic disc of shame!!!

    I believe the correct term is ‘dork disc’.

    December 27, 2018 at 11:47 am #933315
    0
    Joe Totale

    Get rid of the plastic disc
    Get rid of the plastic disc of shame!!!

    December 27, 2018 at 10:13 am #933313
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    Canyon48

    Looks like my Ultegra RX mech

    Looks like my Ultegra RX mech 🙂

    They (including the new R9100 R8000 R7000 rear mechs) do sit very differently to the “old” style 5800/6800.

    December 26, 2018 at 8:19 pm #933311
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    CXR94Di2

    You’ll enjoy the quiet chain

    You’ll enjoy the quiet chain with having a clutch.  

    December 26, 2018 at 8:10 pm #933309
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    DoctorFish
    CXR94Di2 wrote:
    Does it shift okay?  

    post 4 pictures with derailleur on 11cog and easy cog both in small chain ring and large chain ring.   The common issue would be too long or short chain

    It shifts fine in the stand, I’ll go for a test ride tomorrow.  The chain was a bit long, but I’ve shortened it now and all looks okay.  I was more wondering about the direction of the bracket between the hanger and the mechanism itself.  The 105 I took off didn’t have this extra bracket piece.

     

    December 26, 2018 at 7:54 pm #933307
    0
    CXR94Di2

    Does it shift okay?  

    Does it shift okay?  

    post 4 pictures with derailleur on 11cog and easy cog both in small chain ring and large chain ring.   The common issue would be too long or short chain

    December 26, 2018 at 6:21 pm #933305
    0
    Nat Jas Moe

    Looking at the pics on here:-

    Looking at the pics on here:-

    https://road.cc/content/review/249065-shimano-ultegra-rx800-and-rx805-di2-rear-derailleurs

    I would say it looks about right. But I’m no expert.

    December 26, 2018 at 2:57 pm #933303
    0
    DoctorFish

    photo of what it looks like

    photo of what it looks like

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