11-speed cassette weirdness

johngti
johngti Posts: 2,508
So, new wheels (Hunt) and I’ve fitted a 105 11-speed cassette. When I set everything up at the weekend, I gave the cassette some welly when tightening it and all seemed fine. Then it gradually worked loose for some reason. The only way it seems happy is to stick the spacer on first but I didn’t think 11-speed cassettes needed a spacer on 11-speed hubs! Have I got that wrong or should I reinstall it all but grease the threads a bit more? All set up with the spacer now and no sign of problems but I’d rather have it correct.

Comments

  • Not an 11-34 cassette, by any chance? They need a spacer on 11-speed freehubs.
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    2020 Voodoo Marasa
    2017 Cube Attain GTC Pro Disc 2016
    2016 Voodoo Wazoo
  • johngti
    johngti Posts: 2,508

    Not an 11-34 cassette, by any chance? They need a spacer on 11-speed freehubs.

    Funny that, it is! I hadn’t realised it was needed for that. Thanks!
  • orraloon
    orraloon Posts: 12,677
    Hmm. Just put a new 11-34 on summer bike's new wheel. As filthy Jan not had the bike on the road yet. So I should add in a spacer on the inner edge then?
  • johngti
    johngti Posts: 2,508
    Yes I think you should. The 11-34 is designed to fit a 10-speed hub so the carrier is slightly dished. Found a good explanation at https://cyclingtips.com/2018/03/shimano-ultegra-hg-800-11-34t-cassette-review/
  • veronese68
    veronese68 Posts: 27,308
    So the 11-34 is just a mountain bike cassette with road branding.
  • johngti
    johngti Posts: 2,508
    Works for me!
  • So the 11-34 is just a mountain bike cassette with road branding.

    Yes and it was/is a common range with 10 speed groupsets.

    Have (the knees of) humans got weaker since the days of 52/42t and 13-18t gearing.
    www.thecycleclinic.co.uk
  • edward.s
    edward.s Posts: 221
    I rode a 52/42 with a corn cob freewheel years back and had hurting knees. These days I use something a bit lower and its much gentler on this old mans knees. While I am nostalgic for the look of my old polished aluminium Stronglight cranks I don't miss creaking up a climb at 25rpm with my kneecaps seemingly ready to ping off one little bit.
  • veronese68
    veronese68 Posts: 27,308
    I was going to say, my knees have definitely got weaker.
  • it seems that you are using the hg700 or hg800 where both of them are shimano mtb spline ready, which means you need a spacer for a 11sp road spline (freehub), even if this cassette is for use on road bikes. well,
  • daniel_b
    daniel_b Posts: 11,579
    johngti said:

    Yes I think you should. The 11-34 is designed to fit a 10-speed hub so the carrier is slightly dished. Found a good explanation at https://cyclingtips.com/2018/03/shimano-ultegra-hg-800-11-34t-cassette-review/

    Would this also apply to an Ultegra R8000 cassette then?
    I have one to fit at some point to my Mavic wheels.
    Felt F70 05 (Turbo)
    Marin Palisades Trail 91 and 06
    Scott CR1 SL 12
    Cannondale Synapse Adventure 15 & 16 Di2
    Scott Foil 18
  • johngti
    johngti Posts: 2,508
    daniel_b said:

    johngti said:

    Yes I think you should. The 11-34 is designed to fit a 10-speed hub so the carrier is slightly dished. Found a good explanation at https://cyclingtips.com/2018/03/shimano-ultegra-hg-800-11-34t-cassette-review/

    Would this also apply to an Ultegra R8000 cassette then?
    I have one to fit at some point to my Mavic wheels.
    If it's the 11-34 cassette, I believe it would yes.
  • daniel_b
    daniel_b Posts: 11,579
    johngti said:

    daniel_b said:

    johngti said:

    Yes I think you should. The 11-34 is designed to fit a 10-speed hub so the carrier is slightly dished. Found a good explanation at https://cyclingtips.com/2018/03/shimano-ultegra-hg-800-11-34t-cassette-review/

    Would this also apply to an Ultegra R8000 cassette then?
    I have one to fit at some point to my Mavic wheels.
    If it's the 11-34 cassette, I believe it would yes.
    Blimey, not anything that had even crossed my mind!
    This thread has likely saved me a lot of hassle.
    Felt F70 05 (Turbo)
    Marin Palisades Trail 91 and 06
    Scott CR1 SL 12
    Cannondale Synapse Adventure 15 & 16 Di2
    Scott Foil 18
  • johngti
    johngti Posts: 2,508
    I’d say to try it without first but be prepared to have to take the cassette off and fit it afterwards!