CN-9100 XTR/Dura-Ace 12 Spd. Red Hollowtech II Bottom Bracket

Hollowtech II Bottom Bracket

5 and 6 hex keys as well as T25 and SL4 bits) which all fit neatly into the handle of the PRO Mini Torque Wrench for safe storage and quick access

High-quality automatic cylinder

and more time riding

Rim height: 18 mm

CN-9100 XTR/Dura-Ace 12 Spd. Red Hollowtech II Bottom BracketThe Shimano CN M9100 features an extended inner link plate that connects seamlessly with chainring teeth for highly efficient drivetrain performance. Its design offers a reduction in natural vibrations normally caused by the inner and outer chain plates rolling onto the chainring. It provides better chain engagement, stronger retention, and smoother pedaling. Enhancements to shifting performance Easy connect Non reusable Smoother driving even over