Rotor Aldhu 3D+ QRings BCD110x4 Inner Chainring Black - 42

Aldhu Rotor Plate 3D + QRings BCD110x4 black interior provides biomechanical performance improvement, but there is also a more important factor in the design of the Rotor QRings: compatibility. The QRings for "compact" cranks from Shimano maintain an oval of 10% to ensure that the maximum diameter of the plate is at the peak power point of your pedaling. The QRings Aero Shimano 110x4 offers three Optimum Plate Positions (OCP) to adapt to any cyclist and achieve maximum performance. Features: - Ovality 12.