Ultegra FC-R8100

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The ULTEGRA FC-R8100 crankset performs two essential functions: transferring your pedaling effort to the drivetrain and ensuring the fastest and most precise front gear changes possible. Thanks to HOLLOWTECH II and HOLLOWGLIDE technologies, Shimano's benchmark chainrings, the FC-R9200 offers an optimal balance of stiffness, strength, weight, and rotational performance.

• Optimal balance between rigidity, robustness, weight and rotational performance
  
• The HOLLOWGLIDE structure reduces weight while maintaining robustness for better power transfer and faster, more precise front gear changes.
  
• Available chainrings: 52-36 and 50-34 teeth; crank arm lengths: 165, 170, 172.5 and 175 mm.
  
• HOLLOWTECH II Technology
  
• Bottom bracket not included. Included

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