Experience the perfect blend of lightweight design and exceptional stiffness with the Shimano Ultegra R8000 11-speed chainset, engineered for both enthusiasts and competitive cyclists. Its HollowGlide technology significantly boosts rigidity by minimizing outer chainring flex, leading to vastly improved shifting performance, even under intense load. The chainring teeth are meticulously developed to work seamlessly with 11-speed HG-EV chains, ensuring increased contact for superior efficiency and power transfer. Featuring industry-leading HollowTech II cold-forged 4-arm hollow cranks, this chainset maximizes rigidity while minimizing weight. The wide gear pitch spacing enhances frame compatibility by increasing clearance for frames with O.L.D. 135/142 mm and 410mm chain stay lengths. Available in a variety of chainring options and crank arm lengths, it caters to all riders and racing styles. The HollowTech II integrated bottom bracket utilizes wider bearing placement and a larger axle diameter for enhanced stiffness and efficiency. Its minimal bearing interface ensures smooth rolling and durability (bottom bracket sold separately). **Key Features:** * HollowGlide hollow outer chainring for superior rigidity and shift performance * HollowTech II cold forged 4 arm hollow cranks for maximum stiffness and reduced weight * Wide gear pitch spacing for improved frame compatibility * Compatible with 11-speed HG-EV chains for optimal efficiency * HollowTech II integrated bottom bracket for enhanced stiffness and smooth rolling **Summary:** Shimano Ultegra R8000 11-speed chainset, lightweight, stiff, HollowGlide, HollowTech II cranks, HG-EV chain compatible, improved power transfer, cycling performance.