If you want premium, top of the line performance but want to save your cash If you want premium, top of the line performance but want to save your cash, the Shimano Ultegra FC-6800 Chainset is ideal. With the same 4 arm, Hollow Tech II crank design & Hollow Glide outer chainring this Ultegra crankset provides almost the same performance of Dura-Ace at a slight weight penalty. With a wide selection of chainring and crank length options, there is a Shimano Ultegra FC-6800 Chainset for everyone. Shimanos renowned Hollow Tech construction helps to create a lightweight, stiff & reliable crank & spider that is compatible with any Shimano Chainrings. A Hollow Glide outer chain ring provides vast improvements in performance by virtually eliminateing chainring flex & features profiled teeth for some of the best shifting performance in the world. These profiled teeth also grip to 11 Speed HG-EV chains for increased efficiency & power transfer. Key Features Ideal Balance of Light Weight & Stiffness Hollow Glide Outer Chainring for enhanced Shifting Performance Teeth Designed for 11 Speed HG-EV Chains for Increased Efficiency Industry Leading Hollow Tech II 4 Arm Crank Arms Integrated Bottom Bracket With Wider Bearing Placement for Increased Stiffness