The ROTOR Q-Ring 110 × 4 BCD 42T is an oval outer chainring designed for road and gravel use on 110 mm, 4-bolt cranksets. Made from CNC-machined 7075-T6 aluminum, it features a 12.5% oval shape to enhance pedaling efficiency by reducing dead spots. Compatible with Shimano and ROTOR cranks, it includes shifting ramps and pins for smooth front shifting. Fixed to Optimum Chainring Position (OCP) #3 when used with Shimano-compatible spiders.

• Tooth count: 42T

• Bolt pattern: 110 mm BCD with 4 bolts

• Material: 7075-T6 CNC aluminum

• Ovality: 12.5% for optimized power delivery

• OCP fixed to position 3 with Shimano-compatible spiders

• Includes shifting ramps and steel pins for reliable gear changes

• Weight: approximately 134 g

• Compatible with 10–12 speed drivetrains on Shimano and ROTOR cranks