Campagnolo Athena Chainring - 5x BCD 135 (outside) | 2x11-speed

High-quality aluminum chainring for Campagnolo Athena 2x11-speed cranks with 135 mm bolt circle diameter. Suitable for models with Power Torque shaft and aluminum or carbon crank arms. Large chainring version for an installation on the outer mounting position of the crank.

Technical details of the Campagnolo chainring

• series: Athena
• material: aluminum
• construction: 5-arm, X.P.S.S.™
• bolt circle diameter (BCD): 135 mm
• attachment position: outside
• drivetrain system: 2x11-speed

Scope of supply:

1 chainring (without chainring bolts)

X.P.S.S. (Extreme Performance Shifting System) | To achieve the best possible shifting performance, the Campy Tech Lab developed the X.P.S.S. system, which is based on the perfect combination and integration of all components of a drivetrain. Each individual tooth features its own design depending on its position on the chainring and has been specially adapted to the corresponding chain. Since shifting performance is determined by the functionality of the entire group, the chainring, chain and front derailleur are designed to mesh seamlessly and work together. The latest technologies were used to achieve a chainring design that not only enables lightning-fast and smooth shifting, but also ensures optimal chain running under load. With the help of mathematical functions and advanced software, the movement of the chain was meticulously simulated down to the smallest detail.