Round BCD110x4 12-11s chainrings compatible with all ROTOR cranks using BCD110x4 spider and INspider power meter in combination with Shimano® 2x12s or 2x11s groupsets.

In addition, these chainrings are also compatible with Shimano® Dura-Ace® FC-R9200-P, FC-R9200, FC-R9100 and Ultegra® FC-R8100, FC-R8000 cranksets, offering fast and precise shifting while keeping weight very low.

ROTOR round chainrings come to complete the chainring range for those cyclists who have not yet decided to try Q RINGS oval chainrings.

When you are looking for speed, functionality and lightness, the components of your bike have to reflect these needs.

Sizes: 54/42  |  54/39  |  53/39  |  52/36  |  50/34  |  46/36

BCD: 110x4

Weight: 141 g (50/34T)  |  110 g (50T)  |  31 g (34T)

Chainline: 43.9 mm (standard axle)  |  46.4 mm (offset axle)

Material: 7075-T6 aluminum alloy 100% CNC-machined

Cranks compatible: All ROTOR cranks using spider BCD 110x4. All ROTOR cranks using INspider power meter. Shimano® Dura-Ace® FC-R9200-P, FC-R9200, FC-R9100. Shimano® Ultegra® FC-R8100, FC-R8000.

Groupsets compatible: Shimano® 2x12s & 2x11s  |  SRAM® 2x11s

Chains compatible: 12s & 11s chains

*Cranks arms, axle, chainring bolts, spider & power meter not included.

**In some cases, to obtain a full compatibility between Shimano® Dura-Ace® FC-R9200-P, FC-R9200 or Ultegra® FC-R8100 cranks, Shimano® 2x12s groupsets and ROTOR chainrings could be necessary to install 0,5 mm washer in the right side of the axle.