Lightweight yet durable, the 105 FC-R7100 crankset features hollow aluminum construction with Hollowtech II spindle interface for enhanced stiffness and improved power transfer on the road. Designed with 's innovative Hollowglide technology, the 12-speed crankset offers crisp, precise front shifting and reduced weight where it matters most, ensuring smooth performance during high-speed rides. Built with materials, including anodized aluminum arms, this crankset delivers exceptional strength, rigidity, and corrosion resistance, making it ideal for both competitive cycling and everyday riding. Featuring a 52/36t chainring setup and a 110mm asymmetric bolt circle diameter (BCD), this crankset provides optimal gear options for versatile road cycling, whether climbing hills or sprinting on flats. Its sleek black finish and professional-level engineering make the 105 FC-R7100 a stylish, reliable upgrade for riders seeking performance, efficiency, and a modern aesthetic in their 12-speed drivetrain setup. Upgrade your road cycling performance with the 105 R7100 Crankset - a precise blend of lightweight design, durable materials, and innovative engineering. Designed for dedicated cyclists seeking reliability and speed, this 12-speed crankset delivers optimal power transfer, crisp shifting, and unmatched durability on every ride. Materials & Construction: Crafted from hollow aluminum alloy using 's advanced Hollowtech II technology, the FC-R7100 crankset combines strength and weight savings. The black anodized finish not only offers a sleek, stylish look but also enhances corrosion resistance for long-lasting performance. The 170mm crank arms provide a balanced stance for a wide range of riders. Performance & Engineering: Engineered for efficiency, the Hollowglide structure reduces weight without compromising strength, ensuring rapid power transfer during accelerations and climbing. The asymmetric 110mm BCD (Bolt Circle Diameter) with resin ribs on the chainrings improves shifting precision for 52/36T gear ratios. The 44.5mm chainline and 148mm Q-factor optimize riding ergonomics and compatibility with road disc hubs in 135/142mm configurations. Components & Technology: Compatible with 's HG 12-speed chains, this crankset offers smooth, responsive shifting across all gears. The Hollowtech II spindle interface guarantees a stiff, secure connection to your bottom bracket, maximizing pedaling efficiency. Designed expressly for road cycling, its double chainring setup is perfect for varied terrain and high-performance training. Style & Use Case: Sleek black finish complements any road bike setup, suitable for racing, endurance rides, and everyday cycling. Its lightweight yet durable design makes it ideal for riders looking to improve climbing efficiency, top-end speed, and overall pedaling responsiveness without sacrificing reliability. Innovative & Differentiating Features: - Hollowglide structure for reduced weight and enhanced strength - Resin rib