SHIMANO CHAINRING FC-4603 39T

Keep your road drivetrain performing at its peak with the genuine Shimano Tiagra FC-4603 39T Middle Chainring. Engineered as an exact replacement for Shimano Tiagra 3×10-speed triple cranksets, this chainring provides smooth, dependable front shifting and long-lasting durability for road cycling and commuting setups.

Key Features

• Integrated Inner Ring Mounts: Features threaded mounting holes designed so the 30T inner chainring screws directly onto the middle ring body.

• Precision Shift Ramps: Formed with engineered ramps and pickup pins for smooth, precise chain transitions across 10-speed cassettes.

• Durable Alloy Construction: Lightweight anodized aluminum ensures direct power transfer while resisting drivetrain wear.

• Genuine OEM Replacement: Ensures original factory performance and flawless chain clearance for Tiagra FC-4603 cranksets.

Specifications

Compatibility

• Crankset: Shimano Tiagra FC-4603 (3×10-speed triple road crankset)

• Inner Ring: Designed specifically to accept the matching 74mm BCD 30T inner ring via dedicated middle-ring threaded mounts.

• Chains: Compatible with 10-speed HG-X and HG road chains.