ALUGEAR AERO 12S Outer Chainring 110 BCD for Shimano Black

The ALUGEAR AERO Outer Chainring is designed for Shimano 2x12-speed road and time trial drivetrains. Made from 7075-T6 aluminium, it features CNC machining to achieve a lightweight component while maintaining the strength required for its intended use.

Its specific tooth profile, combined with shift ramps and shift assistance features, promotes fast and smooth gear changes, even under load. The chainring is designed for outer mounting on Shimano cranks with a 110 mm asymmetric 4-arm BCD. Its anodised finish helps protect the surface against mechanical impacts and wear.

Compatible with Shimano 105 FC-R7100, Ultegra FC-R8100 and Dura-Ace FC-R9200 cranks, as well as their PowerMeter versions as specified by ALUGEAR. It must be paired with the ALUGEAR inner chainring to ensure optimal double chainring operation. The recommended combinations are 50-34, 52-36 and 54-40.

Ref: 16068016603516