Upgrade your road bike with the all-new Shimano Ultegra Hollowtech II FC-R8000 Front Chainwheel, a high-performance 2x11-speed crankset designed to take your cycling to the next level. Lightweight and Stiff Hollowtech II Design: The FC-R8000 features lightweight and stiff Hollowtech II crankarms, ensuring efficient power transfer with every pedal stroke. Experience improved acceleration and responsiveness on your rides. Hollow Outer Chainring for Optimal Performance: Equipped with a hollow outer chainring, this crankset reduces weight while maintaining durability and performance. It efficiently transfers power from the crankset to the chain for smooth and reliable shifting. Wider Gear Pitch for Modern Road Frames: The FC-R8000 comes with a wider gear pitch, providing increased clearance on modern road frames. Enjoy compatibility with a wide range of bike configurations, ensuring a perfect fit and smooth operation. Multiple Chainring and Crank Arm Length Options: Choose from a variety of chainring options: 53-39, 52-36, 50-34, and 46-36T, allowing you to fine-tune your gear ratios to suit your riding style and terrain. Additionally, select the crank arm length that best fits your needs: 165, 170, 172.5, or 175mm.