The ROTOR Q-Ring Chainring Inner/Outer BCD110x4 Q RINGS BCD110x4 oval chainrings compatible with all ROTOR cranks using BCD 110×4 spider or INspider power meter. In addition, these chainrings are also compatible with Shimano® Dura-Ace® FC-9100 and Ultegra® FC-8000 cranks, offering fast and precise shifting while maintaining a very low weight. Q RINGS oval chainrings allow you to pedal more efficiently, taking advantage of the maximum power of your pedaling and reducing the stress on your knees. Q RINGS offer a healthier pedaling. CHARACTERISTICS Sizes: 56/44 | 55/44 | 55/42 | 54/44 | 54/42 | 54/39 | 53/39 | 52/36 | 50/34 BCD: 110×4 Weight: 134 g (50/34T) | 103.5 g (50T) | 30.5 g (34T) Ovality: 12.5 % Chainline: 43.5 mm (using standard axle), 46 mm (using offset axle) Material: 7075-T6 aluminum alloy 100% CNC-machined Cranks compatible: All ROTOR cranks using spider BCD 110×4. All ROTOR cranks using INspider power meter. Shimano® Dura-Ace® FC-9100. Shimano® Ultegra® FC-8000 Groupsets compatible: Shimano® 11s & 10s. SRAM® 11s Chains compatible: 11s chains
