Shimano FC-RX610-2 GRX 12-Speed Double 30T-NS For 46-30T Inner Chainring

The Shimano FC-RX610-2 GRX 12-Speed Double 30T-NS Inner Chainring is a precise and durable replacement option built to support smooth and reliable shifts under load. It offers a lower 46-30T gearing range for steady cadence control on rough terrain, and its class-leading balance of light weight and rigidity ensures consistent performance. This stand-out combination supports efficient power transfer and stable pedalling in demanding gravel conditions.

Key Features and Benefits:

• Class-leading balance of light weight and rigidity: This provides stable support during shifts and reduces flex when the chainring is under high load. This results in more accurate shifting and a consistent feel across the full gear range.
• 46-30T gearing format: This offers a lower gear ratio that reduces strain when tackling steep or loose surfaces. This leads to smoother cadence control and improved efficiency on long gravel rides.
• HG 12-speed chain compatibility: This creates a controlled interface between chain and tooth profile for reduced friction and improved power transfer. This produces a more direct response when pedalling and enhances drivetrain efficiency.
• Anodised aluminium construction: This protects the teeth against wear while keeping weight low. This extends service life and helps maintain crisp shifting over time.
• 4-arm, 80 mm BCD design: This ensures a secure fit with FC-RX610 cranksets for optimal stiffness. This keeps the chainring stable under force and maintains reliable performance in harsh conditions.
• Matched pairing with the 46T-NS outer ring: This ensures correct spacing and shifting alignment across the full double chainring setup. This delivers consistent front shifting and preserves drivetrain accuracy.

This chainring is perfect for riders who want consistent control and reliable power transfer during long gravel sessions. Its durable construction and targeted tooth design keep the drivetrain stable under pressure, while the 30T size offers practical gearing for off-road gradients. Each feature works together to maintain performance even as conditions become more demanding.

Select this chainring when you need a dependable replacement that maintains the accuracy and efficiency of your GRX drivetrain. Its purpose-built design supports confident shifting and long-term reliability.

Specification:

• 12 Speed
• Discipline: Gravel & Cyclocross
• Colour: Black
• Size: 30 teeth
• Bolt Circle Diameter: 80mm
• Chainring Fitting: 4 Arms