Technical & Reference Section > Tech and Restoration

BB size?

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pickle:
Right I've bought some threaded bar and washers but can someone tell the diameter of a US BB shell so I can be sure they're big enough?
 :daumenhoch:

HUTCHMAN:
the o/d of a us BB shell is 56mm,so some where in that region should do

stidds:
Just measured my Champions BB and external is 58mm, it is chromed so maybe a bit thicker than Hutchmans.

pickle:
cheers guys  :daumenhoch:

my washers are big enough  :daumenhoch:

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