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Discussion Starter · #1 · (Edited)
I am about to install Shimano XTR crankset to my SJ carbon HT using the supplied PF30 press in threaded cups from Specialized.
However, the XTR requires a 2.5mm spacer on the drive side for a 73mm shell but the flange of the press in thread cup is only 1.5mm.

Will this affect the chainline which result in bad shifting? Or would I need another 1mm spacer, which I hesitate because the axle length may not be enough.

http://service.specialized.com/collateral/ownersguide/english-new/assets/pdf/Bottom-Bracket---Press-In-Threaded-Cups-Instruction-Guide.pdf
 
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