Shimano GRX FC-RX820-1 Chainring
Best high performance upgrade for dedicated gravel cyclists seeking reliable chain retention.
This is the definitive upgrade for gravel riders who prioritize chain security over everything else. The narrow-wide tooth profile locks your chain in place on the roughest descents, trading a bit of drivetrain versatility for the absolute peace of mind that you won't drop a gear when it matters most.
$110.00
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Who it's for
- Gravel riders tackling technical terrain and high-vibration off-road paths
- Performance-oriented cyclists seeking a balance of speed and climbing efficiency
- Long-distance tourers requiring smooth gear transitions on varied elevations
Who should skip it
- Budget-conscious upgraders using legacy components or older drivetrain standards
- Value-focused commuters looking for the most affordable replacement parts
- Aesthetic-focused riders who want their bike to look pristine indefinitely
Performance breakdown
Chain Retention
Narrow-wide tooth profile locks the chain securely on rough, bumpy descents.
Weight Efficiency
Alloy construction sheds grams without sacrificing necessary structural rigidity.
Drivetrain Compatibility
Precision engineering ensures seamless shifting across the 12-speed gravel drivetrain.
Durability
Hard-wearing alloy stands up to grit, mud, and high-torque gravel efforts.
Installation Ease
Standard 4-bolt pattern makes swapping rings a straightforward, tool-friendly process.
Power Transfer
Stiff design translates every pedal stroke directly into forward momentum.
Key Specs
Material
Alloy
Chainring Shape
Round
Drive Type
1x
Speed Compatibility
12 Speed
Chainring BCD
110mm
Mounting Type
4-Bolt
Intended Use
Gravel
Number of Teeth
40
Know before you buy
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Ask Metto anything about the Shimano GRX FC-RX820-1 Chainring before you decide.