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Bottom Bracket for older bike

  • 15-06-2010 7:32pm
    #1
    enoonan
    Registered Users Posts: 228 ✭✭


    Lo all,
    I have almost finished my single speed but I am tempted to change the front chainset to a single as opposed to the original double.

    I was thinking also of upgrading the cup & axel bottom bracket to a sealed unit but as a newbie I am a bit stuck for knowledge.

    Two questions:
    Q1: Is the possible to do this type of a change?

    Q2: If it possible to do would the following type work providing its a square taper chainset I get? As far as I know is an english thread I need.
    http://www.chainreactioncycles.com/Models.aspx?ModelID=17473

    Thanks in advance

    Eoin


Comments

  • #2
    kumate_champ07
    Closed Accounts Posts: 7,150 ✭✭✭kumate_champ07


    enoonan wrote: »
    Lo all,
    I have almost finished my single speed but I am tempted to change the front chainset to a single as opposed to the original double.

    I was thinking also of upgrading the cup & axel bottom bracket to a sealed unit but as a newbie I am a bit stuck for knowledge.

    Two questions:
    Q1: Is the possible to do this type of a change?

    Q2: If it possible to do would the following type work providing its a square taper chainset I get? As far as I know is an english thread I need.
    http://www.chainreactioncycles.com/Models.aspx?ModelID=17473

    Thanks in advance

    Eoin
    yes you can use a UN54, UN26 110mm is just under 10euro, either that or 107mm UN54 would be best choice quality/value

    what model is the frame? chances are its english threading which is 68mm.
    cone&cup or sealed cartridge, it doesnt matter as long as its 68mm. for the price it makes sense to upgrade. this is the tool you will need to fit it:http://www.chainreactioncycles.com/Models.aspx?ModelID=14914

    also the original double crankset should be fine, alot of single speed cranks are sold as single but are actually doubles so that you can adjust the chainline. a single speed chainring will have deeper teeth as its not meant for shifting so its best to buy one rather than use a 3/32 multispeed chainring even if your single speed freewheel or cog is 3/32.


  • #3
    enoonan
    Registered Users Posts: 228 ✭✭enoonan


    Thanks kumate_champ07

    All that info is greatly appreciated.

    The frame is an old Triumph 10spd road bike. Around Mid 80s vintage I think.

    Eoin


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