11 speed cassettes

VO2min
VO2min Posts: 28
edited January 2015 in Road buying advice
I'm looking at a new bike with 11-speed gearing either 105 or Ultegra and ideally I would like a 12-28 cassette as the best combination of narrow gaps and a range to suit my normal riding speed. However in 105 and Ultegra the only options are 11-25, 12-25 & 11-28. Would it be possible to get a 12-25 then swap the last couple of cogs which are usually separate? Or is forking out for the Dura ace cassette the only solution?

Comments

  • northpole
    northpole Posts: 1,499
    I've always got on rather well with my Campag 12-27 cassettes.....

    If it must be shimano I suspect that you'd be fine with 11-28

    Peter
  • duckson
    duckson Posts: 961
    SRAM 11-28 retains the 16T in the middle of the cassette, thats the reason i ditched the Ultegra 11-28. I did have DA 12-28 18 months back but RMAed it as it started creaking (well known problem), i found that the best ratios as you say (its a 10sp 12-25 with the 28 bolted on as a get out clause!).
    Cheers, Stu
  • DKay
    DKay Posts: 1,652
    VO2min wrote:
    I'm looking at a new bike with 11-speed gearing either 105 or Ultegra and ideally I would like a 12-28 cassette as the best combination of narrow gaps and a range to suit my normal riding speed. However in 105 and Ultegra the only options are 11-25, 12-25 & 11-28. Would it be possible to get a 12-25 then swap the last couple of cogs which are usually separate? Or is forking out for the Dura ace cassette the only solution?

    The last few (largest) sprockets on a 105 cassette upwards are all bolted/bonded to a one-piece carrier. You can't swap them out, as far as I'm aware.

    I reckon you're over thinking things though. An 11speed 11-28t cassette gives you plenty of options and the ratios are as close as you'd find on a 10speed 11-25t.
  • I haven't checked but have you also looked at Miche cassettes (I think SRAM are all 11-X aren't they?)? Might be some more options there.
  • gwillis
    gwillis Posts: 998
    Worth taking note that 11 speed campag and shimano cassettes work with each other but I guess this is only an option if you have both types of rear wheel . I'm using a ultegra 11 on a campag athena groupset
  • Bar Shaker
    Bar Shaker Posts: 2,313
    I use an SRAM Force 12-28 on my climbing wheels and an 11-26 on my carbons.

    I think the Force cassettes are at least as good as Ultegra. They are fully interchangeable, as are Campags, at 11 speed.
    Boardman Elite SLR 9.2S
    Boardman FS Pro
  • VO2min
    VO2min Posts: 28
    DKay wrote:
    The last few (largest) sprockets on a 105 cassette upwards are all bolted/bonded to a one-piece carrier. You can't swap them out, as far as I'm aware.

    Yeah I said that the wrong way round, would need to start with an 11-28, but not sure there would be enough free cogs to get to a 12-28.

    SRAM don't seem to list a 12-29 cassette, campag do but it's basically the same price as the Shimano Dura-Ace one.

    I know the 11-28 will work, just seems silly to have a gear I rarely use instead of one I would in the middle.
  • Brynd
    Brynd Posts: 39
    Shimano Ultegra ratios
    11-23 (11-12-13-14-15-16-17-18-19-21-23) 
    11-25 (11-12-13-14-15-16-17-19-21-23-25) 
    11-28 (11-12-13-14-15-17-19-21-23-25-28)
    11-32 (11-12-13-14-16-18-20-22-25-28-32)
    12-25 (12-13-14-15-16-17-18-19-21-23-25)

    From a 11-28 & a 12-25 you can make
    12-28 (12-13-14-15-16-17-19-21-23-25-28)

    19-21 are joined together
    23-25-28 are joined together
  • TheHound
    TheHound Posts: 284
    Just to clarify, shim/sram 11sp cassettes work with campag 11sp shifters/derailleur?
    Bianchi Intenso Athena
    Handbuilt Wheels by dcrwheels.co.uk
    Fizik Cyrano R3 Handlebars
    Selle Italia SLR Kit Carbonio Flow saddle
    Deda Superleggero seatpost
  • cycleclinic
    cycleclinic Posts: 6,865
    How about a miche 11 speed cassette in 12-22T of a 12-29T
    http://www.thecycleclinic.co.uk -wheel building and other stuff.
  • Bar Shaker
    Bar Shaker Posts: 2,313
    Yes they are all compatible at 11 speed.
    Boardman Elite SLR 9.2S
    Boardman FS Pro