Crankset Shimano Ultegra FC-R8100 2x12s

Shimano’s ULTEGRA line-up dives into what is ready behind the science of speed with real-world applications.

Following in the footsteps of the DURA-ACE design philosophy, and using many of the same product designs, including the new addition of the 12-speed rear, ULTEGRA is joining the pursuit of next level speed.

SPECIFICATIONS

• Shifting System: 12-speed
• Bottom Bracket Axle Profile: 24mm Hollow Shaft
• Bottom Bracket Case Width: 68mm, 70mm
• Road – Bolt Circle Diameter: 110mm
• Chainring Mount: 2-speed
• Chain Line: 44.5mm
• Q-Factor: 148mm
• Material:
  – Crank arms, inner chainring: aluminium (anodised)
  – Outer chainring: aluminium (anodised)
  – Carbon fibre reinforced polymer (CFRP)
  – Axle: steel (plated)
• Compatibility:
  – Front derailleur: FD-R9250, FD-R8150
  – Bottom bracket: SM-BBR60 (thread type), SM-BB72-41B (Press Fit)
  – Chain: CN-M9100, CN-M8100, CN-M7100, CN-M6100
• Weight: 700 grams (50-34 teeth) . Approx. 711 grams (52-36 teeth)