Very light, high-quality CNC machined 2Fach Aero chainring for 110x4 bolt circle: The ROTOR 110x4 Aero chainrings form a sealed unit with the ROTOR INspider (with aero cover) or ROTOR MAS 110x4 Spider, so that the airflow doesn't tear off and thus an aerodynamic advantage is created.
These are combinable via the ROTOR Direct Mount System with: ROTOR 2INpower DM Road, INpower DM Road, ALDHU and VEGAST (30mm aluminum axle), ALDHU 24 (24mm steel axle)
1. ROTOR INspider Powermeter 110x4 2. ROTOR MAS 110x4 AERO Spider 3. ROTOR 110x4 ALDHU Spider 4. as well as 110x4 Shimano cranks
As a small chainring to the Aero chainrings are the well-known 110x4 ALDHU chainrings in the sizes 44, 42, 39, 36 and 34 teeth available - oval and round:
Recommended spacing: 54/42; 53/39, 52/36; 50/34. Additional spacing: 58/44, 56/44 or 42, 55/44 or 42 and 46/36 available as 110x4 non-Aero ALDHU chainrings).