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Our RIGEL carbon chainrings are a masterpiece of engineering that takes drivetrain chainrings to the next level. They combine aerodynamic design with advanced engineering to deliver maximum efficiency and lightness with every pedal stroke. Their forged carbon body reduces weight without compromising stiffness and reduces friction, while the 7075-T6 anti-wear aluminum core protects the chain contact area, offering greater durability .
Each Rigel chainring is handcrafted in our Barcelona workshop , using our own technology and the finest carbon fiber. We continuously mold the fiber onto the metal teeth, achieving a fiber distribution impossible with any other process. The result is a unique, exclusive, and limited-production piece. The development of this chainring has taken us over three years and earned us two international patents.
Honestly, when you receive it and mount it on your bike, and see how the light bounces off it, you'll realize there's nothing like it, and that it's a spectacular plate.
Compatibility
3mm offset (BOOST).
Transmissions 1x11, 1x12, 1x13.
While the products we create are worthy of a display case, they're meant to be enjoyed by you as you ride and push your limits, and falls are part of the game.
In this situation, if you damage a Gemini component, don't worry and send us an email to info@ridegemini.com with:
and we'll offer you a discount on a replacement component
In an era where races are decided by tenths of a second, and upgrades that allow you to go faster are the difference between landing on the top step of the podium or not. Rigel has been developed in carbon, improving the efficiency of conventional chainrings, minimizing friction with the chain to help you be the fastest, with a single chainring.
More than three years of research and development, over 500 prototypes, thousands of kilometers of testing in all kinds of conditions by the most demanding riders... the result? Two international patent applications and the most technologically advanced chainring.
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We've crafted the core of each tooth from 7075-T6 aluminum alloy, the hardest aluminum, to transmit power while providing high wear resistance, while carbon fiber covers the core laterally, reducing dynamic friction and noise with each link in the chain, creating an ultra-light and aerodynamic chainring structure.
You will feel an unparalleled smoothness when pedaling.
Thanks to a process involving over 100 tons of controlled pressure and the specific arrangement of the material in the mold, the composite fibers are arranged in the geometry of each tooth around the metal core with a structural concentric organization that gives it a strength impossible to achieve with any other carbon fiber manufacturing process, such as those manufactured in layers or subsequent CNC machining.
(Patent pending)
Innovation is in our DNA. Having complete control over every process allows us to create pieces never before seen. That's why we design and manufacture under one roof, where Gemini engineers and craftspeople can ensure the excellence of each piece.
Choose the number of teeth and the interface compatible with your cranks and make your bike unique. Ask your questions in the FAQ section about compatibility.
STD. 3mm.
1 x 11, 1 x 12
32T, 34T and 36T
SRAM 3 bolts
SRAM 8 bolts
RaceFace / Easton
Cannondale Hollowgram
Rigel's tooth design has been developed to be compatible with any chain on the market for 11 and 12 speeds, for both Shimano, SRAM eagle and SRAM eagle Flattop chains.
If you want to maximize the life of your Rigel chainring, we recommend using a new chain when installing it and monitoring its wear. This will extend the life of your RIGEL carbon chainring by many miles.
Defining a general durability for a component of this type is impossible, since its durability depends on the power exerted by the cyclist when pedaling, the slope, maintenance, etc. These are factors that can determine whether some cyclists ride more km than others, just like with a conventional aluminum chainring, so we cannot give you specific data. Keep in mind that the core is made of metal, so the wear will be similar to an aluminum chainring.
The 3mm offset is compatible with all bikes that have a 148mm BOOST rear hub setup.
Yes, it's the lightest Direct Mount chainring. The 30T, SRAM 3-bolt version weighs around 39g, as it primarily uses carbon fiber for both the frame and the teeth, despite having an internal metal core used solely to extend its lifespan.
We recommend lubricating your drivetrain with a dry lubricant to prevent particles from adhering to the chain and causing premature wear on your RIGEL carbon chainring. Keeping your drivetrain clean and well-lubricated will extend the life of your RIGEL.
Rigel is made from Forged Carbon, resulting in a continuous fiber structure within the tooth that is unattainable with traditional carbon fiber manufacturing processes. In addition, its internal metal core provides superior wear performance of the carbon teeth.
