Technical & Reference Section > Tech and Restoration

euro bb help

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priv:
i've fitted some primo cranks to a euro bb,but when i tighten the nuts into the spindle

it tightens up onto the bearings and after a few pedal strokes the cranks seize up


if i loosen the nuts in the axle slightly it frees the cranks,but then they're only finger tight and evenually they undo completely and drop out
any ideas how to tighten up the crank arms without seizing the bearings?

i've only really used isis bb's in mountain bikes so this is all new to me

priv

priv

Dark Diggler:
Have you got a spacer tube in there  (in the middle of the bearings with the spindle running through it) ?

priv:
no mate,is it like a tube about 2-3 in long?

Trev:

--- Quote from: priv on July 24, 2008, 10:48 PM ---no mate,is it like a tube about 2-3 in long?


--- End quote ---

like this

priv:
thanks you two,i'll have a root about to see if i've got one


would one of those stop it then?

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