10 Speed Jockey wheels and 5800?

antlaff
antlaff Posts: 583
edited March 2019 in Workshop
simple question...okay to use RD5700 (105 10spd) with 11speed setup ?
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  • keef66
    keef66 Posts: 13,123
    Are you talking about just the jockey wheels or the whole rear mech? A 5700 RD won't work with 11 speed shifters / cassette.

    If just jockey wheels, looking at the exploded views on Shimano Tech Docs the 5800 pulleys look similar to those on the 5700, but the part numbers are different and the pulley mounting bolts are 2mm shorter for 5800.

    So I'm guessing they'll be too fat...
  • svetty
    svetty Posts: 1,904
    The tooth profile on the later R7000 11 speed 105 gruppo has changed...
    FFS! Harden up and grow a pair :D
  • keef66
    keef66 Posts: 13,123
    I noticed that too. Curiously the pulley bolts are back to being 12.5mm long...

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