--- product_id: 211696129 title: "SRAM GX Eagle Rear Derailleur" brand: "sram" price: "£126.98" currency: GBP in_stock: true reviews_count: 13 category: "Sram" url: https://www.desertcart.co.uk/products/211696129-sram-gx-eagle-rear-derailleur store_origin: GB region: United Kingdom --- # Lunar colorway, sleek aesthetics Long cage for 52t max cassette 12-speed precision shifting SRAM GX Eagle Rear Derailleur **Brand:** sram **Price:** £126.98 **Availability:** ✅ In Stock ## Summary > 🌙 Shift into the future with precision and style! ## Quick Answers - **What is this?** SRAM GX Eagle Rear Derailleur by sram - **How much does it cost?** £126.98 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/211696129-sram-gx-eagle-rear-derailleur) ## Best For - sram enthusiasts ## Why This Product - Trusted sram brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Durability Meets Design:** Enhanced mounting system and sealed cartridge bearings ensure long-lasting performance. - • **Chain Management Mastery:** Long cage design improves chain retention, reducing drops and maintenance. - • **Seamless 12-Speed Shifting:** Experience ultra-smooth gear transitions that keep you ahead on every trail. - • **Stand Out with Lunar Style:** Part of the Eagle Colorsystem, the Lunar finish elevates your bike’s look with unmatched style. - • **Versatile Cassette Compatibility:** Supports both 10-50t and 10-52t cassettes for ultimate drivetrain flexibility. ## Overview The SRAM GX Eagle Rear Derailleur is a 12-speed, long cage drivetrain component designed for maximum versatility and durability. Compatible with 10-50t and 10-52t cassettes, it features a robust mounting system, sealed cartridge pulley bearings, and a sleek Lunar colorway that complements the Eagle Colorsystem. Ideal for riders seeking reliable, smooth shifting and standout aesthetics on any trail. ## Description Product description SRAM GX Eagle Rear Derailleur Riders want the derailleur to do its job shifting on command, whether under climbing load or the stage finish. The GX Eagle derailleur gets it done with an updated cage architecture that improves chain management. Refined to work with the new 10-52t cassettes, it’s also backwards compatible for the 10-50t versions. Giving riders choice, because that’s how it should be. Finished with the new GX Eagle signature colorway – to compliment any cassette and chain colorway a rider wants from the Eagle Colorsystem Further proof that the GX Eagle derailleur is there for one thing - to do the job From Black to Gold to Rainbow, to HardChrome and new Copper Features Backwards compatible, works with both 10-50t and new 10-52t cassettes Updated cage architecture provides better chain retention and precise shifts Comes in GX Eagle signature colorway as part of Eagle Colorsystem Improved Chain Management The updated cage architecture of the GX Eagle derailleur enhances chain management Ensuring smooth and reliable shifting even under demanding conditions such as climbing or sprinting. This improves overall drivetrain efficiency and reduces the risk of chain drop or derailment. The GX Eagle derailleur is designed to work seamlessly with SRAM's new 10-52t cassettes, providing riders with an expanded gear range for tackling steep climbs and fast descents. Additionally, it is backwards compatible with the 10-50t cassettes, offering riders flexibility and choice based on their riding preferences. The GX Eagle derailleur gives riders the freedom to choose the gear range that best suits their riding style and terrain Whether they prefer a wider range for tackling extreme climbs or a tighter range for faster, flatter trails, the GX Eagle derailleur allows riders to tailor their drivetrain setup to their specific needs Finished with the new GX Eagle signature colorway, the derailleur adds a touch of style to any bike build Cage Lock X-Actuation Design philosophy and technology used in SRAM's mountain bike drivetrain systems, particularly in their rear derailleurs and shifters. X-Actuation aims to provide precise and consistent shifting performance by optimizing the relationship between the shifter, cable pull ratio, and rear derailleur movement. Uses an optimized cable pull ratio Refers to the cable pulled by the shifter to move the rear derailleur Designed to simplify wheel removal and installation by temporarily locking the derailleur cage in place. This feature is particularly useful for tasks such as changing a flat tire or removing the rear wheel for maintenance. SRAM Cage Lock is typically activated by pushing or rotating a small lever located on the rear derailleur. When engaged, the Cage Lock mechanism holds the derailleur cage in a fixed position, effectively "locking" it in place. This prevents the derailleur from moving and allows the user to easily remove or install the rear wheel without interference from the derailleur With the Cage Lock engaged, the derailleur cage remains stationary, creating additional clearance for removing or installing the rear wheel This makes tasks such as changing a flat tire or performing maintenance on the rear wheel quicker and easier, as there is no need to manually hold the derailleur out of the way Review: Very good product - I have a sram SX drivetrain. With only this change I feel like I'm getting a whole new system. Smooth and resistant. Review: Shifts great! - Works just as well as the XO1 that it replaced. I guess it’s a few grams heavier but obviously not something that anyone would feel while riding. I’m happy I saved the money over the XO1 as functionally just as good. These things are great once you dial them in. Best shifting that I’ve ever had in a mountain bike. ## Features - Experience precise and reliable shifting with the thoughtfully designed cage architecture of the GX Eagle Rear Derailleur. - Enjoy the flexibility of using both 10-50t and 10-52t cassettes with the backwards compatible design. - Enhance your bike's aesthetics with the GX Eagle master colorway, part of the Eagle Colorsystem, which complements all colors of Eagle cassettes and chains. - Benefit from greater durability with the updated mounting system and re-positioned Cage Lock, along with sealed cartridge pulley bearings. - Get the job done with the long cage, 12-speed Lunar-colored GX Eagle Rear Derailleur, designed for improved chain retention and chain management. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08B2W2QBH | | Best Sellers Rank | #33,216 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #9 in Rear Bike Derailleurs | | Brand | SRAM | | Brand Name | SRAM | | Case Material Type | Aluminium | | Color | Lunar | | Customer Reviews | 4.8 out of 5 stars 925 Reviews | | Global Trade Identification Number | 00710845853487 | | Included Components | Bike Parts | | Item Dimensions L x W x H | 14"L x 10"W x 3"H | | Item Type Name | SRAM 12V GEARBOX. GX EAGLE LUNAR LONG CAGE | | Item Weight | 1.3 Pounds | | Manufacturer | SRAM | | Manufacturer Part Number | 00.7518.137.000 | | Material | Multi | | Material Type | Multi | | Model Number | C8C090 | | Mount Type | Standard | | Mounting Type | Standard | | Number of Teeth | 52 | | Product Dimensions | 14"L x 10"W x 3"H | | UPC | 710845853487 | | Warranty Description | 2 Year Manufacturer | ## Product Details - **Brand:** SRAM - **Color:** Lunar - **Item Weight:** 1.3 Pounds - **Material:** Multi - **Mounting Type:** Standard ## Images ![SRAM GX Eagle Rear Derailleur - Image 1](https://m.media-amazon.com/images/I/618OU8vcBcL.jpg) ![SRAM GX Eagle Rear Derailleur - Image 2](https://m.media-amazon.com/images/I/41VK6GTjNKL.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Very good product *by J***. on May 6, 2026* I have a sram SX drivetrain. With only this change I feel like I'm getting a whole new system. Smooth and resistant. ### ⭐⭐⭐⭐⭐ Shifts great! *by R***R on September 6, 2025* Works just as well as the XO1 that it replaced. I guess it’s a few grams heavier but obviously not something that anyone would feel while riding. I’m happy I saved the money over the XO1 as functionally just as good. These things are great once you dial them in. Best shifting that I’ve ever had in a mountain bike. ### ⭐⭐⭐⭐⭐ Works great *by C***E on November 1, 2025* Works perfect, got rid of the sram sx which is junk and now it shifts perfect. ## Frequently Bought Together - SRAM GX Eagle Rear Derailleur - 12-Speed, Long Cage, 52t Max, Lunar - SRAM GX Eagle Hollow Pin 12-Speed Chain 126 Links with PowerLock, Silver/Gray - SRAM GX Eagle Trigger Shifter - Rear, 12-Speed, Discrete Clamp, Lunar --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/211696129-sram-gx-eagle-rear-derailleur](https://www.desertcart.co.uk/products/211696129-sram-gx-eagle-rear-derailleur) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-22*