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Quarq Quarq S975 BB30 53/39 175mm - $
FS: Shimano Dura-Ace Front/Rear Derailleurs, Vision TriMax TT BB30 Crank 52/38T 170mm
Quarq SRAM Quarq BB30 172.5mm 50/34T Crankset - $
Quarq SRAM quarq GXP 170mm crankset - $1350
SRAM Force BB30 Crankset 110bcd 170mm - $150