ROTOR Inner 5B 110 BCD 55/54 chainring Black, 42T

Nobody applies constant, even force throughout the pedal stroke, which is why ROTOR sought to improve upon traditional round rings by creating its flagship oval Q rings. Round rings however, have a place in history and ROTOR wanted to complement its product range by offering round rings in addition to Q rings. 0% ovality noQ chainrings for your compact cranks offer the performance benefits inherent in round rings. Specifications: - Weight: 0.300000 kg - QRING Type: Inner/Outer - Compatibility: Designed to work with all 9, 10 and 11 speed groupsets - Material: 100% CNC-machined, 7075-T6 aluminum alloy - Pins: Steel shifting pins - Teeth: 42