The (No Suggestions) II 11-speed Ultegra chain set offers an ideal balance of light weight and stiffness, making it the perfect choice for both enthusiast and competitive riders Hollow Glide hollow outer chain ring gives vast improvements in rigidity by virtually removing outer chain ring flex and hugely improves shift performance, even under high load The chain ring 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 (No Suggestions) 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 chain ring options and crank arm lengths are available to meet the needs of all riders and racing disciplines (No Suggestions) II integrated bottom bracket uses a wider bearing placement and larger axle diameter for increased stiffness and efficiency (No Suggestions) II integrated bottom bracket seal design has minimal bearing interface ensuring smooth rolling and increased durability(sold separately)
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