Rotor Road Chainring, 5-arm, Q-Rings, 110 mm BCD

For top performance: Oval Road Chainrings by Rotor

In the history of Rotor, the Q-Rings have already been chosen by many professional cyclists and triathletes. This has included the greatest victories of all, including Olympic gold medals, Tour de France wins, over 25 Ironman wins and over 20 MTB, Road, TT and CX World Championships. These successes alone speak for the class of Rotor Q-Rings.

Specifications:

Application:

Road, Triathlon, Cyclocross

Mount:

110 mm bolt circle diameter, 5-arm

Teeth:

34 t, 36 t, 38 t, 39 t, 42 t, 44 t, 46 t, 50 t, 52 t, 53 t

Gearing:

2x9-speed, 2x10-speed, 2x11-speed

Type:

oval 10%

Technical Information:

Material:

aluminium (7075-T6)

Features:

• for cranks from Rotor and from other manufacturers
• Number of OCP: 5 (4 for 34-50 T)
• 34 to 42 teeth for the inner chainring, 44 to 53 teeth for the outer chainring
• 100% CNC-machined
• black anodised, laser-etched
• climbing aids made of steel

Technology:

Oval Chainrings
Bio-mechanical studies show that Q-Rings provide better performance than conventional chainrings. The effect is achieved by making the largest muscle groups in the legs more effective and eliminating the dead centre when pedalling. This results in a much smoother and rounder ride overall, with less muscle fatigue. The biggest advantages of using Q-Rings are the significant improvement in general fitness due to improved pedalling, greater sprinting ability due to the elimination of dead centre, slower muscle fatigue, and ultimately an increase in cardiovascular endurance for athletes.
A submaximal test followed by a time trial over a distance of 1 km proved that the Q-rings reduce heart rate and oxygen consumption while improving performance by 1.6 seconds compared to round chainrings.

OCP
Optimum Chainring Position (OCP) indicates the various adjustments that Rotor Q-Rings offer to adapt to the rider's specific pedalling characteristics. Q-Rings have up to 5 OCPs (Road) or up to 3 OCPs (MTB). These positions help to optimise your pedalling behaviour.
You can determine your OCP if you know your optimal chainring angle (OCA), which you can determine by a Torque 360 step analysis with the user software of Rotor 2INPower and INPower.

Manufacturer Numbers:

34 tooth:

C01-002-27010A-0

36 tooth:

C01-002-25010A-0

38 tooth:

C01-002-23010A-0

39 tooth:

C01-002-22010-0

42 tooth:

C01-002-19010-0

44 tooth:

C01-002-17010-0

46 tooth:

C01-002-15010A-0

50 tooth:

C01-002-11010A-0

52 tooth:

C01-002-09010-0

53 tooth:

C01-002-08010-0

Contents:

• 1 x Rotor Road Q-ring chainring