Red E1 Aero 1x Chainring C02 - Battery Type: Rechargeable lithium

- Battery Type: Rechargeable lithium battery

Rim Height: 20 mm

ensure direct and equal weight distribution and balance asymmetry in both the body and pedal stroke

ULTEGRA RX800 Series

Red E1 Aero 1x Chainring C02 - Battery Type: Rechargeable lithiumOur light, stiff, and durable direct mount chainrings let you pick the exact gearing you want and quickly swap sizes. Our X SYNC technology keeps the chain where you need it to be, too. X SYNC wide tooth, narrow tooth chainring technology provides maximum chain control Laser etched chainring finish is more durable X Range gearing technology gives you more range and a smoother gear progression, so youre always in the right gear Improved aerodynamics