Rotor Q-rings are ovalized chainrings designed to reduce the negative effects of the 'dead spots' during a rider's pedal stroke. Because of the Q-ring shape, a rider is maximising their output over the larger size of the chainring and reducing energy used during the the small portion of the chainring. Q-rings maximise the use of your power and compensate for the least productive zones of your pedal stroke; they boost your capability, allowing your legs to generate smoother, more efficient propulsion with noticeable gains in endurance and performance.
Why are Q-rings the solution?
A round chainring tries to make your leg deliver a linear output, meaning that the legs have the same amount of resistance in the weak zones as they do in the power phase of the stroke, resulting in unhealthy joint strain, fatigue, lactic acid production and wasted energy. In addition, round rings do not add resistance where you are able to produce more power. At the end of the day, round chainrings hinder cycling performance and create unnecessary knee stress.
Pedalling power varies during the pedal stroke; the majority of power is delivered during the down stroke, with low to negative power during the rest of the stroke.
Q-rings were designed to counter this imbalance
When the power a cyclist generates is projected on a circular graph (commonly known as a "spin-scan"), we see clearly that every cyclist, recreational or professional, has a zone of distinct power defecit and a zone of clear power generation.
Q-rings are designed on a firm base of consistent, reliable data and are intended to vary the resistance in the drivetrain in line with our legs' ability (and inability) to deliver power; they make pedalling more effective, efficient, and a more natural process.
Q-rings: upgrade yourself
Q-rings don't make your bike better, they make you better. By having the drivetain maximise the use of your power and compensate for the least productive zones of your pedal stroke, they boost your capability - allowing your legs to generate smoother, more efficient propulsion with noticeable gains in endurance and performance.
Key features
Smaller diameter at the dead spots
Bolt Circle Diameter : 104 mm / 4 arm
Chainring type : Outer
Colour : Black
Material : Aluminium
Speed : 9, 10
Teeth : 42, 44