ALUGEAR AERO 1x GRX chainring 38–50T
Price:
€90.00
Tax included
ALUGEAR AERO 1x chainring for GRX 11/12-speed, CNC-machined from 7075-T6 aluminium. Ultra-light Narrow Wide profile for quiet, secure chain retention, ideal for Gravel 1× setups with Shimano GRX RX820 and RX810 cranksets.
Chainring
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ALUGEAR AERO 1x GRX chainring – ultra-light Gravel 11/12-speed setup
The ALUGEAR AERO 1x chainring is designed for 1×12 and 1×11-speed Gravel drivetrains using Shimano GRX RX820 and RX810 cranksets. CNC-machined from stiff 7075-T6 aluminium, it combines an extremely low weight, a quiet Narrow Wide tooth profile and long-lasting durability, even in demanding off-road use.
Technical specifications
- Intended use: Gravel 1×12 and 1×11-speed setups
- Bolt circle diameter: 110 mm Shimano asymmetric (GRX)
- Mounting: 4-arm spider
- Tooth profile: Narrow Wide for secure chain retention
- Material: 7075-T6 aluminium, CNC-machined
- Surface finish: industrial anodising for impact and corrosion resistance
Available sizes, weights and diameters
| Teeth | Weight | Outer diameter |
|---|---|---|
| 38T | 75 g | 161.3 mm |
| 40T | 84 g | 171.0 mm |
| 42T | 91 g | 179.0 mm |
| 44T | 99 g | 187.0 mm |
| 46T | 106 g | 195.5 mm |
| 48T | 116 g | 202.4 mm |
| 50T | 125 g | 210.4 mm |
Compatibility
- Compatible with Shimano GRX FC-RX820 (12-speed) cranksets.
- Compatible with Shimano GRX FC-RX810 (11-speed) cranksets.
- Suitable for 1×12 and 1×11-speed drivetrains.
- Compatible chains: Shimano 12-speed Hyperglide+, KMC 12-speed, Shimano 11-speed.
Please note: ALUGEAR AERO 1x GRX chainrings are not compatible with FC-RX610 and FC-RX600 cranksets. ALUGEAR offers dedicated 1x chainrings specifically designed for these crank models.
On-bike performance
ALUGEAR chainrings are among the lightest options on the market. Their design has been refined through extensive testing to remove every unnecessary gram while preserving excellent stiffness. The unique Narrow Wide tooth profile and carefully tuned geometry provide precise chain guidance, with a noticeable reduction in noise and wear.
The result is a smooth, quiet drivetrain with highly reliable chain retention for Gravel riding, even on rough terrain or under heavy load. If you are looking for a technically advanced chainring with a distinctive look and minimal weight, ALUGEAR is an excellent choice.
Installation recommendations
- Use appropriate chainring bolts for GRX cranksets.
- We recommend fitting a new chain when installing a new ALUGEAR chainring.
- Always keep your chain clean and properly lubricated to reduce wear.
- Required tool: 5 mm hex socket.
- Maximum tightening torque: 10 Nm.
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