Outer ring of our 2x aero 110×4 spider mount Round chainrings provide minimal air resistance, reduces drag and allows you to pedal faster with less effort. They are compatible with all ROTOR modular road cranks and power meters including 2INpower, INspider, INpower, ALHDU and VEGAST.
Compatible with 110×4 Spider and Aero Mas Spider.
Weight of chainring (52t): 140.6g
Chainline ALDU/Vegast with std axle: 43.5 mm
Chainline ALDU/Vegast with offset axle: 46mm
Chainrings: 58/44, 56/44, 55/44 or 42, 55/44 or 42, 53/39, 50/34.