Shifting performance has helped Full Speed Ahead to become a world leader for high-end chainrings. No one studies the design and manufacturing of each system, and each tooth, as carefully as FSA do. FSA's dedication shows in every revolution of the crank, and every perfect shift achieved. To meet or exceed the needs of any drivetrain, FSA has developed sophisticated design, testing and manufacturing protocols. This allows FSA to match your needs as perfectly as their chainrings match a chain. The FSA Super Road chainring is made from hard-wearing CNC machined AL7075 T6 alloy and it is ramped and pinned, so you get top-notch shifting quality every time. The design calls for more aluminum left in place near the interface points between ring and spider. This thickness gives the Super Chainring added flex-resistance, which is ideal for hard accelerations. This model is compatible with Shimano 10/11-speed cranksets, giving brilliant acceleration and smooth shifts every time.