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Discussion Starter · #1 ·
I would like to upgrade my ird quad 55 bb to a phil on my sir.

The ire is a 115mm and it gives me a nice chainline with my eno crank set. What size spidle do I need on a phil? Bike set up is ck hubs sir Niner with en crank.

Also do I need a phil symetric or the one that has the extra 5mm on the drive side?
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