-15%
Rotor round chainring kit for Shimano 12s cranks
Reduced price:
€148.75
Tax included
Select this kit if you want to mount Rotor round rings on your 12s Shimano crankset.
Inner chainring
Outer Chainring
Rotor NOQ Round 12/11-speed Chainring Kit for Shimano 4-arm Cranksets
This complete Rotor NOQ round 12/11-speed chainring kit is designed to replace or upgrade the rings on your Shimano 4-arm crankset (105, Ultegra, Dura-Ace, including powermeter versions 8100-P and 9200-P). You can freely choose your outer chainring (50, 52, 53 or 54 teeth) and inner chainring (34, 36, 39 or 42 teeth), and the kit includes the required male–female chainring bolts for Shimano.
Kit Contents
- 1 Rotor NOQ round outer chainring, 4-arm, 110 mm BCD: 50T, 52T, 53T or 54T.
- 1 Rotor NOQ round inner chainring, 4-arm, 110 mm BCD: 34T, 36T, 39T or 42T.
- 4 male–female chainring bolts specific to Shimano 4-arm cranksets (outer + inner positions).
NOQ rings are fully round (non-oval) and ideal for riders who prefer a traditional pedaling feel while benefiting from Rotor’s rigidity and premium machining quality.
Universal Compatibility with Shimano 4-arm Cranksets
This kit is engineered for maximum compatibility with Shimano 4-arm road cranksets (110 mm), for both 11-speed and 12-speed groups:
- Shimano 105 4-arm cranksets (11/12-speed).
- Ultegra 4-arm cranksets, all recent generations (11/12-speed).
- Dura-Ace 4-arm cranksets (11/12-speed).
- Powermeter versions Ultegra 8100-P and Dura-Ace 9200-P.
Tooth profile and chainline have been refined to ensure perfect shifting with Shimano 12-speed and 11-speed chains, as well as most modern road drivetrains using the same standards. The result is smooth, quiet and extremely reliable shifting.
Selecting Your Gear Ratios: From 50/34 to 54/42
This kit offers many combinations to tailor your crankset to your riding style:
- 50/34 or 52/36: the ideal all-round setups for road and sportive riding, perfect for rolling terrain.
- 53/39: a race-oriented configuration, appreciated by former competitors used to larger chainrings.
- 54/39 or 54/42: perfect for time-trial, triathlon, or high-speed flat riding.
Whether you want to replace worn-out chainrings, upgrade from a compact 50/34 to a more dynamic 52/36, or prepare a dedicated TT bike, this kit covers nearly all modern road setups.
Bolts Included & Easy Installation
The kit includes 4 male–female bolts matched to the thickness of Rotor NOQ chainrings on Shimano 4-arm cranksets. No need to search for extra hardware: everything required for a clean, secure installation is included.
For tightening, we recommend using a torque wrench set to 7–8 Nm and 6-mm hex bits.
Key Advantages of the Rotor NOQ 12/11-speed Shimano Kit
- Universal compatibility with most Shimano 4-arm road cranksets, including 105, Ultegra, Dura-Ace, 8100-P and 9200-P.
- Complete kit with outer ring, inner ring and male–female bolts included.
- Rotor machining quality: high stiffness, precise tooth shaping, excellent shifting performance.
- NOQ round rings: classic pedaling feel, easy to ride and adjust to.
- 11-speed & 12-speed compatible: optimized for Shimano’s latest drivetrains.
- Wide choice of tooth counts to match your terrain and fitness level.
Velo-Perso.com’s Opinion
The Rotor NOQ round 12/11-speed chainring kit is a clean and efficient solution for anyone wanting to refresh their Shimano crankset or fine-tune their gearing without replacing the whole groupset. Compatibility with 8100-P and 9200-P powermeter cranksets also makes it an excellent option for riders who rely on accurate power data while seeking Rotor’s stiffness and machining benefits.
For demanding riders, sportive cyclists, and those who love optimizing every detail of their drivetrain, this kit is a coherent, lasting upgrade fully suited to modern road bikes and Shimano 11- and 12-speed groups.
| color | black |
|---|---|
| Material | Aluminum |
| Chainring shape | Round |
| Storage location (from where it's shipped to you) | France |
| Manufacturing location | Spain |
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