Shimano CUES U8000 9/10/11 Spd Crankset The Shimano CUES FC-U8000 1 x 9/10/11-speed HOLLOWTECH II crankset offers excellent chain control, and the stiff but lightweight construction provides a confident ride on long treks and urban explorations. Hollow-forged crank maximizes power transfer while limiting weight HOLLOWTECH II Special gear tip shape improves chain engagement and retention for smooth riding over rough terrain DYNAMIC CHAIN ENGAGEMENT+ Only compatible with LINKGLIDE shifting system SPECIFICATIONS Use: Trekking Group: CUES U8000 Model: FC-U8000-1 Gradation: 42T Q-Factor: 180mm Threaded BB shell width: 68/73mm Gear: 9/10/11-speed Construction: HOLLOWTECH II Compatible Chain: LINKGLIDE, HG 11-speed Bolt Circle Diameter: 110mm O.L.D./Thru: 142mm O.L.D./QR/Nut: 135mm Chain line: 50mm Crank arm length (choose variant) 170mm 175mm Material Crank arm: Aluminum Chainring: Aluminum TECHNOLOGIES LINKGLIDE delivers seamless shifting and pedaling performance that's made to last. LINKGLIDE will support stress-free riding and ownership experiences for evolving bike types and riding styles for years to come. It is an exceptionally durable drivetrain built to stand up to persistent daily wear and provide enduring shifting and pedaling performance for multi-purpose bikes and high-torque e-bikes. The robustly engineered cassette design shifts up and down gears seamlessly while significantly reducing drivetrain wear. LINKGLIDE is the ultimate utility drivetrain that delivers long-lasting performance. LINKGLIDE Key Features Smooth and decisive shifting and pedaling performance that's made to last. Optimized shifting gate design. Robust cassette teeth resist damage when shifting and driving under high torque. HOLLOWTECH II Providing the best balance of stiffness, strength, weight and rotating performance The concept of HOLLOWTECH II technology is focused on producing a superior crankset which will maximize a riders power transfer. The rigidity of the crankset ensures pedaling efficiency while its weight, a key element of the crankset, you want light, aids in cycling longer distances over which the rider needs to pedal more. Naturally, SHIMANO strove for the optimum balance between the conflicting needs of stiffness while producing a lightweight crank. HOLLOWTECH technology is an ultra-lightweight hollow crankarm created by SHIMANO with the companys own proprietary forging technology that also maintains rigidity. The addition of HOLLOWTECH II technology integrates the bottom bracket axle with the right crankarm for more stiffness and a weight savings to achieve a high-dimensional balance. Its outboard bottom bracket bearing system provides better weight distribution and more pedaling stability, allowing for more efficient power transfer. The HOLLOWTECH II crankset has been developed by pursuing the optimum balance of stiffness & rotating performance in a lightweight and beautiful crankset design. High Precision Sealing Moreover, HOLLOWTECH II crankset has a high-precision sealing in the bearing area to increase durability maintaining the excellent rotating performance for long periods. DYNAMIC CHAIN ENGAGEMENT+ SPECIAL GEAR TEETH FUNCTION SHIMANOs DYNAMIC CHAIN ENGAGEMENT+ is a special gear teeth profile designed for use in single-chainring configurations for XC, enduro, and trail riding. It gives more chain retention and smoother pedaling - even over bumpy terrain. Chain retention of any gear will reduce abrasion and worn out.