ROTOR chainring Q-Rings Rings oval double LK 80 mm | 4 hole for rotor ALDHU | Shimano GRX interior
Rotor chainrings have been known for their high quality for many years. Now you can also install the flat aero chainrings from the Spanish manufacturer on your Shimano GRX cranks. The inner chainrings with 31 or 30 teeth with an asymmetrical 80mm bolt circle diameter should be combined with the matching outer chainrings with 48 or 46 teeth with an asymmetrical 110mm bolt circle diameter .
The oval shape of the Q-Rings chainrings is used to optimally use the leg muscles and thus increase your own performance! The theory behind it is based on the fact that the human leg muscles are primarily designed to straighten the leg, while bending the leg is only necessary rarely and without great effort. The corresponding muscle groups are naturally so differently developed that even through hard training, the performance of the different muscle groups cannot be adjusted to each other. With round chainrings, this difference always results in an uneven kick and a significantly faster fatigue of the muscles that pull when pedaling. The Rotor Q-Rings start at this point and, due to their oval shape, put more strain on the pressing muscles and at the same time relieve the strain on the pulling muscle parts. This concept increases both sprint and endurance performance through better use of the anatomical conditions!
The OCP system (Optimum Chainring Position) has been further refined for optimal adjustment of the oval Q-Rings. The position of the chainrings can be adjusted in 1-degree increments using a combination of different positions of the crank arms on the crankshaft and a finely ratcheted spider mount (only in conjunction with Rotor cranks ).
Area of intended use : Gravel, Cyclocross, racing bike
Material: Aluminum 7075 T6
Technology: OCP system
bolt circle diameter : 80 mm
Attachment: 4-arm spider (Shimano asymmetrical)
Number of teeth: 30 (for large 46 tooth chainring) or 31 (for large 48 tooth chainring)
Compatibility cranks : Shimano GRX (except Power Meter)
Compatibility chain: 10-/ 11-speed
Ovalization: 12.5%, position adjustable in 1 step (only on Rotor cranks )
Weight according to manufacturer: k. A
Weight weighed: 30g (30 teeth)
Scope of delivery: 1x ROTOR chainring Q-Rings Aero oval 2-fold LK 80 mm | 4 hole for rotor ALDHU | Shimano GRX interior