Old 01-30-15, 12:21 PM
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Location: Palo Alto , CA
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Bikes: '88 Centurion Ironman Master,88' Bridgestone MB-3,

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Centurion Ironman Bottom Bracket BB Question 1988 88

Hi there I have a centurion ironman master year 1988 white and purple smoke with shimano 600 6400 tricolor components(6400 biopace crankset).
Bottom bracket is a tange cup and cone .

BB Shell width 68mm
BB spindle length 120mm

Looking to get shimano cartridge bearings UN55. Sheldon brown lists 113-115mm and saw Ex Pres and RobbieTunes posted 115mm-116 is fine for an 89 master. What size spindle do I get. thanks

Last edited by straightsixZ; 01-30-15 at 12:35 PM.
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