Chainring Set 2-speed Round AERO for Shimano GRX

Important Information:

Preorder for GRX sets are currently being accepted 

Initial shipments are scheduled to commence on May 27 

Please be advised that as the date of May 27 approaches, the processing time of orders will require up to 10 business days

Consequently, if an order is placed on May 26, it will be shipped within 10 business days

Size: 46T-32T
Color: Black

100% secure payments

Processing time: up to 10 business days


Shipping time: 2 to 7 business days. Provided by FedEx

  Return Policy

You can return an unused product within 30 days

 The original AERO GRX design ALUGEAR chainring 2-speed



  • Intended to use: 2X 12 speed and 2X 11 speed for Gravel bike

  • Weights: 46 teeth – 110g; 48 teeth – 123g; 32 teeth – 35g; 34 teeth – 40g

  • Optimum chainring combinations: 46-32; 48-34

  • Mounting position: outside 46T; 48T;  inside 32T; 34T

  • Bolt circle diameter: 110 mm Shimano Asymmetric (GRX versions outer chainrings), 80 mm Shimano Asymmetric (GRX versions inner chainrings)

  • Attachment: 4-arm spider

  • Material: Aluminum 7075-T6

  • Made: CNC milling

  • Surface coating: Anodizing

  • Color: Outer chainring in 8 colors; Inner chainring only in black



  • Compatible with Shimano 2X 12 speed FC-RX820-2 GRX cranks  (12 speed)

  • Compatible with Shimano 2X 11 speed FC-RX810-2 GRX cranks (11 speed)

  • NOTE! The ALUGEAR 2X AERO chainrings for GRX are Not compatible with cranks FC-RX610 and FC-RX600

  • Chainrings you may use the following chains: 12sp Shimano (Hyperglide+), 12sp KMC, 11sp Shimano chains



ALUGEAR chainrings are some of the lightest chainrings on the market. Using our experience and vigorous testing, we tweaked the arm design and strategically machined the chainrings so that only minimal sacrifices were made in impact strength in exchange for large gains in weight reduction

With unique tooth profiles, mount and climbing aids allow chainrings a particularly soft and fast switching. So with them a shift under load easily. The chainrings have been specially tuned by climbing aids and can only achieve their superior shifting performance in the combinations provided by ALUGEAR

The chainrings are CNC machined from 7075 T6 aluminum and hard coat industrially anodized to provide protection from mechanical impacts, a good look, and an excellent tactile feel to each of the chainrings that lasts a long time
A unique tooth profile eliminates chain noise, reduces wear, and provides smooth operation on the entire system of all the most common combinations of drivetrains

ALUGEAR chainrings are the best choice if you are looking for a technologically sound chainring with a unique design and low weight



  • It is also a good idea to use a new chain with your new ALUGEAR chainrings

  • It is recommended to use a well-lubricated chain on every ride

  • We recommend using the optimal ALUGEAR 2-speed chainring combination

  • The correct operation of the double set is guaranteed only when using ALUGEAR outer and inner chainrings together 

  • Tool holder: 5 mm hexagon socket maximum permissible torque: 12 Nm




Delivery includes: 1 pcs outer AERO chainring, 1 pcs inner chainring, 8 psc bolts


Data sheet

for 110 BCD Shimano GRX

Specific References


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