Shimano Chainring DURA-ACE FC-9000 39T

Features

• Material: Al/Carbon
• Teeth: 53
• Chainring BCD: 110 Asymmetrical
• Outer ring only
• Compatible with Shimano 11-chains
• 4-arm design reduces weight without sacrificing stiffness
• Hollowtech II construction puts structural strength precisely where it's needed
• Hollowglide chainrings are durable and lightweight