SHIMANO
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Shimano GRX RD-RX812 Rear Derailleur - 11-Speed, Long Cage, Black, With Clutch, For 1x
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Shimano GRX RD-RX812 Rear Derailleur - 11-Speed, Long Cage, Black, With Clutch, For 1x
The SHIMANO Grx Rd-Rx812 Rear Derailleur offers smooth and reliable mixed surface shifting and prevents chain slapping.
Shimano GRX RD-RX812 Rear Derailleur - 11-Speed, Long Cage, Black, With Clutch, For 1x
Item #: 27327123

Shimano GRX RD-RX812 Rear Derailleur - 11-Speed, Long Cage, Black, With Clutch, For 1x

Item #: 27327123

XCD 501

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The SHIMANO Grx Rd-Rx812 Rear Derailleur offers smooth and reliable mixed surface shifting and prevents chain slapping.
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What Stands Out

Precision Shifting
The SHIMANO GRX RD-RX812 offers precise shifting performance, ensuring smooth gear transitions and reliable operation, enhancing the overall riding experience for gravel and adventure cyclists.
Durable Design
Engineered with robustness in mind, this rear derailleur is built to withstand the rigors of gravel riding, providing long-lasting performance and reliability under demanding conditions.
Wide Compatibility
With a wide range of gear ratios supported, the GRX RD-RX812 is compatible with various setups, allowing cyclists to customize their drivetrain to match different terrains and riding styles.

Product Details

Shop Shimano GRX RD-RX812 Rear Derailleur - 11-Speed, Long Cage, Black, With Clutch, For 1x online at a best price in Grenada. B07VT2XG79
Item Weight0.5 lbs (230 grams)

Who Should Buy?

Suitable For
  • Gravel Enthusiasts

    Perfect for riders who frequently tackle gravel terrains, providing smooth shifting and durability over rough surfaces.

  • Bikepackers

    Ideal for bikepackers who require reliable performance and adaptability on diverse terrains during long journeys.

  • Cyclocross Racers

    Suited for cyclocross racers looking for precise gear transitions and performance in challenging race conditions.

Not Suitable For
  • Urban Commuters

    Not the best choice for city riders who primarily navigate flat roads and require simpler gear systems.

  • Casual Cyclists

    Casual riders may find this advanced derailleur unnecessary, favoring simpler and more user-friendly options.

  • Road Racers

    Road cyclists might prefer derailleur systems designed specifically for smooth pavements and high-speed performance.

Product Description

Shimano GRX RD-RX812 Rear Derailleur - 11-Speed, Long Cage, Black, With Clutch, For 1x

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What makes the Shimano GRX RD-RX812 Rear Derailleur suitable for gravel biking?

    Answer: The Shimano GRX RD-RX812 Rear Derailleur is specifically designed for gravel riding, offering a robust and reliable performance on diverse terrains. Its long cage allows for a wider range of gear ratios and better chain management while riding over rough surfaces. The clutch feature minimizes chain slap, enhancing stability and reducing potential damage on bumpy trails. Whether you're tackling steep climbs or fast descents, this derailleur ensures smooth shifting and optimal chain tension, making it an excellent choice for adventurers looking to explore unpaved routes.
  • Question: How does the clutch mechanism work in the Shimano GRX RD-RX812 Rear Derailleur?

    Answer: The clutch mechanism in the Shimano GRX RD-RX812 Rear Derailleur operates by engaging a spring-loaded arm that maintains constant tension on the chain. This design significantly reduces chain movement, preventing it from bouncing excessively, which is crucial for absorbing impacts on rough trails. By stabilizing the chain, it enhances shifting performance and contributes to the overall durability of your drivetrain. Riders will appreciate this feature when navigating challenging terrains, as it allows for more precise gear changes and a smoother ride.
  • Question: Can the Shimano GRX RD-RX812 be used with multiple chainrings?

    Answer: The Shimano GRX RD-RX812 is optimized for 1x drivetrain setups, meaning it is best suited for use with a single chainring. Its design supports efficient shifting and chain tension for this configuration. While it might technically function with a 2x system, utilizing the GRX RD-RX812 with a single chainring maximizes its benefits, including weight savings and simplicity in gear selection. Gravel riders looking for a streamlined, fuss-free experience will find this derailleur aligns perfectly with their needs.
  • Question: What is the weight of the Shimano GRX RD-RX812 Rear Derailleur?

    Answer: The Shimano GRX RD-RX812 Rear Derailleur weighs approximately 315 grams. This lightweight construction does not compromise durability, allowing riders to benefit from a high-performance component that won't add unnecessary weight to their bike setup. A lighter bike can improve handling and speed, especially on varied terrains. Cyclists who prioritize performance while keeping an eye on weight will appreciate the balanced design of this rear derailleur.
  • Question: Is the Shimano GRX RD-RX812 compatible with other Shimano drivetrains?

    Answer: The Shimano GRX RD-RX812 is primarily designed for Shimano's 11-speed GRX series, making it compatible with other 11-speed Shimano components. However, compatibility may vary if you're trying to mix it with older or non-11-speed Shimano systems. It's always advisable to check compatibility with your existing bike setup to ensure seamless shifting and optimal performance. Gravel enthusiasts looking for reliable components will find this derailleur works best within its intended ecosystem for the best results.
  • Question: What tools are required for installation of the Shimano GRX RD-RX812?

    Answer: Installing the Shimano GRX RD-RX812 requires basic bicycle maintenance tools, including a 5mm Allen wrench and possibly a chain tool for adjustments. This derailleur mounts easily to the derailleur hanger, and precise adjustments are crucial for optimal performance. Home mechanics can appreciate a quick installation process, which allows them to get back on the trails without much delay. Proper installation ensures smooth shifting and reduces the risk of issues during rides.
  • Question: How does the performance of the GRX RD-RX812 compare to other rear derailleurs?

    Answer: The performance of the Shimano GRX RD-RX812 stands out due to its specialized design for gravel riding, which prioritizes durability and smooth shifting under load. Compared to standard road or mountain bike derailleurs, the RD-RX812's clutch mechanism offers superior chain stability in rough conditions, making it ideal for mixed terrains. Riders targeting gravel events or mixed-surface rides will notice improved performance and reliability, setting it apart from general-purpose options.
  • Question: What gearing options can I use with the Shimano GRX RD-RX812 Rear Derailleur?

    Answer: The Shimano GRX RD-RX812 is designed to work with a wide range of gear ratios, typically accommodating cassettes ranging from 11-34 teeth. This flexibility allows riders to tackle a variety of inclines and terrains without compromising shifting performance. Whether you're climbing steep hills or cruising along flat roads, the RD-RX812 ensures that you have the right gearing for your riding style and environment. This adaptability makes it an excellent choice for mixed-terrain adventure cyclists.
  • Question: What colors does the Shimano GRX RD-RX812 Rear Derailleur come in?

    Answer: The Shimano GRX RD-RX812 Rear Derailleur is primarily available in a sleek black finish, offering a modern aesthetic that complements most bike styles. This neutral color ensures that it pairs well with a variety of frames and components while maintaining a rugged appearance ideal for gravel riding. Cyclists who prioritize style alongside performance will appreciate the clean and understated look of this derailleur, which matches the outdoor and adventure vibe of gravel biking.
  • Question: Where can I buy Shimano GRX RD-RX812 Rear Derailleur - 11-Speed, Long Cage, Black, With Clutch, For 1x?

    Answer: You can buy the Shimano GRX RD-RX812 Rear Derailleur at Ubuy in Grenada. Ubuy offers a user-friendly experience with a comprehensive selection of Shimano products, making it a reliable destination for cyclists looking for quality components. By purchasing from Ubuy, you can also benefit from their customer support and specialized services tailored for biking enthusiasts, ensuring you receive the right products for your cycling setup.

SHIMANO Rear Derailleurs Editorial Review

The SHIMANO RD-RX812 GRX Rear DERAILLEUR 11SPD is a solid and reliable gravel-specific derailleur. It is designed for use with a 1x crankset and can accommodate up to an 11-42T cassette. It can also work with a 2x11 setup when paired with a front derailleur. The long cage version with a maximum cassette size of 42T allows for a wide gear range. However, Shimano does not clearly indicate which GRX derailleur is suitable for different setups, causing confusion for some customers. Overall, the GRX performs well and is a great choice for gravel bikes.

Customer Reviews & Ratings

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Pros

  • Solid and reliable performance
  • Suitable for 1x and 2x setups
  • Wide gear range with a maximum cassette size of 42T

Cons

  • Lack of clear information on which GRX derailleur is suitable for different setups

Product Price History

Important information

  • Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
  • Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.

XCD 501

Order now and get it around Thursday, July 02

QTY:

Secured transactionsecured transaction

Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.

Our Top Logistics Partners
  • fedex
  • dhl
Fastest cross-border delivery

Features & Benefits

  • Max capacity for 42t low sprocket and 11t top sprocket.
  • Adjustable Shimano RD+ chain stabilizer prevents chain slapping and drops.
  • Designed specifically for gravel riding and mixed surfaces.
  • Provides enhanced clutch tension for smooth shifting.
  • Compatible with Shimano road Dual Control Levers.
  • Upgrade your bike's performance with superior reliability.