It's hard to beat Shimano when it comes to drivetrain performance. They utilize the latest technology in their components, and if the technology doesn't exist, well, they invent it. This road crankset is stiff, light and reduces shifting times to help you stay at the front of the pack, even if the pack is just you and your buddies out for a Saturday spin.
Hollowtech II crankarms balance weight savings with stiffness to give you the support you need for out of the saddle sprints and climbs
Hollowglide outer ring shaves even more weight to make climbing easier
Improved design for less chain rub, letting you run more gear combinations
Standard gearing gives you higher possible speeds for rolling hills, flats and all-out sprints