ROTOR Round Rings BCD110x4 outer chainrings compatible with all ROTOR cranks using BCD 110×4 spider or INspider power meter.

In addition, these chainrings are also compatible with Shimano Ultegra FC-8100, Ultegra FC-8000, Dura-Ace FC-9200 and Dura-Ace FC-9100 cranks cranks, offering fast and precise shifting while maintaining a very low weight. Aero-chainrings are not compatible with the 12-speed Shimano Powermeter cranks. (R8100p and R9200p)

Characteristics

• Sizes: 58 aero  |  56 aero  |  55 aero |  54(42) aero |  54(42)  |  54(39)  |  53  |  52  |  50  |  46
• BCD: 110×4
• Weight: 103.5 g (50T)
• Chainline: 43.5 mm (using standard axle), 46 mm (using offset axle)
• Material: 7075-T6 aluminum alloy 100% CNC-machined
• Cranks compatible NON-AERO: All ROTOR cranks using spider BCD 110×4. All ROTOR cranks using INspider power meter. Shimano 2×12 and 2×11 cranksets and powermeters.
  Cranks compatible AERO: All ROTOR cranks using spider BCD 110×4. All ROTOR cranks using INspider power meter. Shimano 2×12 and 2×11 cranksets BUT NOT compatible with Shimano powermeters!
• Groupsets compatible: Shimano 11s & 12s
• Chains compatible: 11s / 12s chains