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Discussion Starter · #1 ·
I just swapped out an old XT BB, with a CK BB.
BB shell is 73 mm. New XT crankset going on.
Do I need a spacer? I have the CK manual infront of me and can't see any mention of whether needed or not. This is my first time replacing a BB - please forgive newbie ignorance!!
 

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one 2.5mm spacer, either side, depending on your chainline preference. the larger o-ring on the plastic inner sleeve needs to be in the furthest outboard position (of the two possible indents).
 
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