Rotor Road Chainring, 4-arm, Q-ring, 110 mm BCD 11-/12-speed

Rotor Road Chainring, 4-arm, Q-ring, 110 mm bolt circle diameter for Rotor and Shimano cranks

This oval road bike chainring from Rotor has four arms and a bolt circle diameter of 110 mm. Its special shape promotes a smooth and efficient pedal stroke, so your muscles tire less quickly and your overall performance improves. The aluminium CNC-machined chainring is suitable for Rotor cranks with the corresponding Spider, for INSpider power meter cranks as well as for newer Shimano Dura-Ace and Ultegra cranks including the power meter models.

Specifications:

Application:

Road

Mount:

110 mm bolt circle diameter, 4-arm asymmetrical

Teeth:

34 t, 36 t, 39 t, 42 t, 44 t, 46 t, 50 t, 52 t, 53 t, 54 t, 55 t, 56 t

Gearing:

2x11-speed, 2x12-speed

Type:

Oval 12.5%

Technical Information:

Chainline:

43.9 mm (Rotor standard axis), 46.4 mm (Rotor offset axis)

Material:

aluminium (7075-T6)

Compatibility:

• all Rotor cranks with 110x4 spider
• all Rotor cranks with INSpider power meter
• Shimano Dura-Ace FC-R9200, FC-R9200-P, FC-R9100, FC-R9100-P
• Shimano Ultegra FC-R8100, FC-R8100-P, FC-R8000
• Shimano 2x12-speed and 2x11-speed groupsets
• SRAM 2x11-speed groupsets
• 12- and 11-speed chains

Note from the manufacturer:

In some cases, a 0.5 mm washer must be fitted on the right side of the crank axle to ensure full compatibility between Shimano Dura-Ace FC-R9200 or Ultegra FC-R8100 cranks, Shimano 2x12-speed groupsets and Rotor chainrings.

Features:

• oval shape for more pedalling efficiency
• fast, precise shifting
• lightweight
• 34 to 44 teeth for the inner chainring, 46 to 56 teeth for the outer chainring
• 100% CNC milled

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.

Manufacturer Numbers:

34 tooth:

C01-048-27010-0

36 tooth:

C01-048-25010-0

39 tooth:

C01-048-22010-0

42 tooth:

C01-048-19010-0

44 tooth:

C01-048-17010-0

46 tooth:

C01-048-15010-0

50 tooth:

C01-048-11010-0

52 tooth:

C01-048-09010-0

53 tooth:

C01-048-08010-0

54 tooth:

C01-048-07010-0

55 tooth:

C01-048-06010-0

56 tooth:

C01-048-05010-0

Contents:

• 1 x Rotor Road chainring, 4-arm, Q-ring, 110 mm bolt circle diameter