The SHIMANO GRX FC-RX600-1 40T Chainring is an original replacement chainring designed for the GRX FC-RX600-1 crankset and 1x11-speed gravel drivetrains. Developed specifically for mixed-surface riding, it combines reliable chain retention, efficient power transfer and durable aluminium construction.

The 40-tooth configuration provides versatile gearing for gravel roads, cyclocross, all-road riding and mixed terrain. SHIMANO's DYNAMIC CHAIN ENGAGEMENT+ tooth profile improves chain engagement and retention, helping keep the chain securely in place when riding over rough and uneven surfaces.

The chainring features a 110 mm BCD, asymmetric four-bolt mounting and durable aluminium construction. It is designed specifically for the FC-RX600-1 crankset and SHIMANO 11-speed drivetrain systems.

Key Features

• Original SHIMANO replacement part – designed for the GRX FC-RX600-1 crankset
• 40 teeth – versatile gearing for gravel and mixed terrain
• 1x11-speed compatible – specifically designed for single-chainring GRX drivetrains
• DYNAMIC CHAIN ENGAGEMENT+ – optimised tooth profile for improved chain retention
• 110 mm BCD – compatible with the FC-RX600-1 crankset
• 4-bolt asymmetric mounting – GRX-specific design
• Aluminium construction – lightweight and durable
• Gravel-specific design – suitable for gravel, all-road and cyclocross applications
• Black finish – matches SHIMANO GRX components