The Q-Rings Aero is an oval road chainring for sporty 1x or 2x drivetrains. With 54 teeth (54T) as an outer ring and a 4-arm mounting (BCD 110x4 mm), this version is matched to the ROTOR drivetrain described.

The oval Q-Rings geometry changes the effective gear ratio over the course of a crank revolution and this version has 12.5% ovality. It's designed for riders who want to deliberately adapt their pedaling to ROTOR's oval concept.

Key features at a glance:

• 54 teeth for sporty 54/39 road gearing
• Oval Aero profile with 12.5% ovality
• CNC-machined 7075-T6 aluminum with BCD 110x4 mm

Technical specifications:

• Manufacturer: ROTOR
• Model: Q-Rings Aero
• Product type: Oval Aero outer chainring
• Intended use: Road cycling / Road / Triathlon / Time trial
• Drivetrain: 2x
• Gears: 2x11-speed
• Tooth count: 54 teeth (54T)
• Intended chainring combination: 54/39 teeth
• Bolt circle diameter: BCD 110 mm
• Mounting: 4-arm mounting (BCD 110x4 mm)
• Chainring shape: Oval
• Ovality: 12.5%
• Design: Aero
• Position: Outer
• Material: 7075-T6 aluminum
• Manufacturing: CNC-machined
• Color: Black

Compatible with:

• ROTOR road bike cranks with a compatible BCD 110x4 mm spider
• ROTOR INspider power meter with compatible 110x4 mm mounting standard
• Compatible Shimano Dura-Ace FC-R9100 and Ultegra FC-R8000 cranksets without an integrated Shimano power meter
• Compatible 2x11-speed road bike drivetrains
• Matching 39-tooth inner chainring for the 54/39 gearing

Scope of delivery:

• 1x ROTOR Q-Rings Aero Oval Outer Chainring, 54 Teeth, Black
• Delivered in workshop packaging - securely packaged, without the original packaging

Manufacturer part number: C01-041-07120-0 | EAN: 8434366018218

For a road drivetrain where the tooth count, mounting standard, and chainring combination are properly matched.