Shimano Dura Ace R9100 11 Speed Chainring

• Redesign the gear teeth profile to fit wider gear pitch
• Rider tuned gearing options
• Exclusive for Dura-Ace R9100 cranksets
• 11-speed SIS compatible
• Outer chainrings are hollow-forged and machined with integrated (blind) threads for optimized strength-to-weight
• Speed: 2x11 speed
• BCD: 110mm 4-Arm Asymmetrical