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Bicycle Integrated Bottom Bracket set. Hollowtech.
For BB73. MTB Bicycle use.
Oversized internal bearings.
Casing: CNC machined Cr-Mo (Cromoly).
Cups: CNC machined forged aluminum.
Suit For 24mm Axle.
Double Sealed Bearings.
Inner frame width: 68 / 73mm.
Thread: BC-1.37’’ x 24T.
Weight: 115gr.