The Aero MAS Spider is engineered to provide minimal air resistance, reduce drag and allow you to pedal faster with less effort. It is compatible with all current-model ROTOR modular road cranks and power meters including 2INpower, INpower, ALHDU, and VEGAST.
This spider includes our OCP Mount technology so you can adjust your optimal chainring position by precise 7.8-degree increments.
Select the perfect chainring size from our 1x/2x 110x4 Q RINGS® or Round range.