Advertisement
If you have a new account but are having problems posting or verifying your account, please email us on hello@boards.ie for help. Thanks :)
Hello all! Please ensure that you are posting a new thread or question in the appropriate forum. The Feedback forum is overwhelmed with questions that are having to be moved elsewhere. If you need help to verify your account contact hello@boards.ie

So I'm thinking of doing some A4 next yr

Options
  • 21-10-2013 5:12pm
    #1
    dvntie
    Registered Users Posts: 777 ✭✭✭


    The question that I'm looking to have answered is as follows,
    Should I be looking to change from a compact to standard chainset?


Comments

  • Options
    #2
    niceonetom
    Registered Users Posts: 4,833 ✭✭✭niceonetom


    No.


  • Options
    #3
    fixie fox
    Closed Accounts Posts: 519 ✭✭✭fixie fox


    dvntie wrote: »
    The question that I'm looking to have answered is as follows,
    Should I be looking to change from a compact to standard chainset?

    A 50 x 12 @ 100rpm = 53kph.
    A 50 x 11 = 57.5 kph.

    That should do you at A4.

    Changing the 34 to a 38 will lessen the jump between rings.


  • Options
    #4
    MartMc
    Registered Users Posts: 13 ✭MartMc


    Cycled A4 this year using a compact (Tiagra 50/34) had an 11 on the cassette and I never felt I need a bigger gear. I know some of my club mates rode with the same configuration, its not an issue.


  • Options
    #5
    colm_gti
    Closed Accounts Posts: 2,505 ✭✭✭colm_gti


    It depends what compact you have, some are faster than others


  • Options
    #6
    lizzylad84
    Registered Users Posts: 1,403 ✭✭✭lizzylad84


    socks are the most important item imho


  • Advertisement
  • Options
    #7
    dvntie
    Registered Users Posts: 777 ✭✭✭dvntie


    fixie fox wrote: »
    A 50 x 12 @ 100rpm = 53kph.
    A 50 x 11 = 57.5 kph.

    That should do you at A4.

    Changing the 34 to a 38 will lessen the jump between rings.

    Cheers for that it only confirms what I've been thinking already have an 11 with the 50 and I'm rarely out of the big ring so the 38 sounds like a plan too


  • Options
    #8
    MediaMan
    Registered Users Posts: 454 ✭✭MediaMan


    fixie fox wrote: »
    A 50 x 12 @ 100rpm = 53kph.
    A 50 x 11 = 57.5 kph.

    That should do you at A4.

    Changing the 34 to a 38 will lessen the jump between rings.

    I like the idea of changing the 34 to a 38 as I've always thought that the drop from 50 to 34 is the biggest disadvantage of a compact. Both in terms of the ratio gap and the risk of dropping the chain right over the 34 onto the BB when changing down under duress.

    Might go out and buy a 38 to try it out. Presumably no derailleur adjustment needed?


  • Options
    #9
    Lusk_Doyle
    Registered Users Posts: 4,338 ✭✭✭Lusk_Doyle


    MediaMan wrote: »
    I like the idea of changing the 34 to a 38 as I've always thought that the drop from 50 to 34 is the biggest disadvantage of a compact. Both in terms of the ratio gap and the risk of dropping the chain right over the 34 onto the BB when changing down under duress.

    Might go out and buy a 38 to try it out. Presumably no derailleur adjustment needed?

    Well, you're going to need to take it off to get the old ring off and the new one on.


  • Options
    #10
    Raam
    Registered Users Posts: 14,317 ✭✭✭✭Raam


    Compact is fine. Here is a picture of a person winning on a compact.

    kmi11-winner3.jpg


  • Options
    #11
    fixie fox
    Closed Accounts Posts: 519 ✭✭✭fixie fox


    Lusk_Doyle wrote: »
    Well, you're going to need to take it off to get the old ring off and the new one on.

    No, this isn't correct.


  • Advertisement
  • Options
    #12
    godtabh
    Moderators, Science, Health & Environment Moderators Posts: 23,208 Mod ✭✭✭✭godtabh


    Raam wrote: »
    Compact is fine. Here is a picture of a person winning on a compact.

    kmi11-winner3.jpg

    Is that you? NIce jersey


  • Options
    #13
    Lusk_Doyle
    Registered Users Posts: 4,338 ✭✭✭Lusk_Doyle


    godtabh wrote: »
    Is that you? NIce jersey

    The lad in that pic wishes he was as good a climber as Raam :pac:


  • Options
    #14
    Harrybelafonte
    Closed Accounts Posts: 6,450 ✭✭✭Harrybelafonte


    Thread which previously covered this question.


  • Options
    #15
    Raam
    Registered Users Posts: 14,317 ✭✭✭✭Raam


    godtabh wrote: »
    Is that you? NIce jersey

    No, not me.


Advertisement