Shimano GRX 42T Chainring for FC-RX820-1

The Shimano GRX 42-tooth chainring is designed specifically for the 1x12-speed FC-RX820-1 crankset, offering an optimized solution for gravel, cyclocross, and endurance road bike use. Designed to ensure efficiency, reliability, and consistent performance, it is an ideal choice for those seeking a balance between cadence, power, and versatility on mixed terrains.

Compatible with the Shimano GRX 12V system, this 42T chainring integrates perfectly with 1x12 drivetrains, ensuring smooth shifting and consistent pedaling even on challenging routes. The design is engineered to maintain high rigidity and efficient power transfer, typical of Shimano GRX technology.

The FC-RX820-1 series offers various tooth options (40T, 42T, 44T, and 46T), allowing for customization of gearing based on the type of route and riding style.

Technical Features

• Shimano GRX 42-tooth chainring (42T)
• Compatible with Shimano FC-RX820-1 crankset
• 1x12-speed drivetrain
• BCD: 110 mm
• 4-arm spider
• Compatible with Shimano GRX 12-speed system
• Available in 40T, 42T, 44T and 46T versions
• Optimized for gravel, cyclocross, and endurance road use

Specifications

• Teeth: 42T
• Sprockets: Not applicable
• Compatible Ypart model: FC-RX820-1

Compatibility and Use

The 42T chainring represents an intermediate choice in the GRX RX820 range, ideal for those seeking versatile use: agile enough for climbs and long enough to maintain high speeds on flat sections. It is compatible with Shimano GRX 12-speed cassettes (10-45T or 10-51T).

Additional Information

Technical specifications are based on official Shimano information and may vary slightly depending on manufacturer configurations and updates.

The Shimano GRX 42T chainring for FC-RX820-1 is the ideal solution for those who want a high-performance, precise 1x12 drivetrain suitable for all types of gravel and mixed terrain.