• According to Sheldon the TA track bottom bracket has a 111.5mm spindle.
    You can get a 110/113mm shimano, or sjs have a 110.5 tange.
    Holdsworth should be able to sort you out, but not many shops will have this info.
    EDIT - Please ignore some of what I said above! I forgot that you have a geared bike... I don't know what BB you will need to get good indexing on the 5 gears... perhaps to the 115mm Sheldon used?

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