ROTOR Round Chainrings 12-11sp (BCD110x4)

ROTOR Round Rings BCD110x4 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 Outer: 58 aero  |  56 aero  |  55 aero |  54(42) aero |  54(42)  |  54(39)  |  53  |  52  |  50  |  46

Sizes Inner: 44  |  42  |  39  |  36  |  34

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