Shimano FC-R8000 Ultegra 11-speed Double 50/34T 165 Mm Chainset

Features:

• Hollowglide hollow outer chainring gives vast improvements in rigidity by virtually removing outer chainring flex and hugely improves shift performance, even under high load
• The chainring teeth have been developed to work in conjunction with 11-speed hg-ev chains for increased contact to provide greater efficiency and improved power transfer
• Industry leading hollowtech ii cold forged 4 arm hollow cranks have been evolved for maximum rigidity while reducing weight
• Wide gear pitch spacing increases clearance between chain and leading teeth to provide compatibility to frames with o.L.D. 135 / 142 mm and 410mm chain stay length
• A wide range of chainring options and crank arm lengths are available to meet the needs of all riders and racing disciplines
• Hollowtech ii integrated bottom bracket uses a wider bearing placement and larger axle diameter for increased stiffness and efficiency
• Hollowtech ii integrated bottom bracket seal design has minimal bearing interface ensuring smooth rolling and increased durability(sold separately)