Experience the pinnacle of road cycling performance with this advanced crankset, an essential component of Shimano's renowned 11-speed lineup. Designed for optimal stiffness, strength, and weight savings, this crankset enhances your bike's acceleration and overall efficiency.Utilizes Hollowtech hollow forged crank arms to significantly reduce weight while enhancing rigidityInnovative Hollowglide technology on outer rings minimizes weight without compromising strength, ensuring superior power transfer and precise shiftingCompatible with Shimano HG-EV and HG-X11 chains, providing versatility for your drivetrainFeatures a 43.5mm chainline and a 146mm Q-factor for improved performanceAsymmetrical 110 BCD design for enhanced compatibility. Designed for use with outboard bottom brackets (sold separately).