--- product_id: 158810962 title: "XT RD-M8100-SGS RD-M8120-SGS 12-Speed Rear Derailleur, Long Cage, Black" brand: "shimano" price: "150113CFA" currency: XOF in_stock: true reviews_count: 13 category: "Shimano" url: https://www.desertcart.sn/products/158810962-xt-rd-m8100-sgs-rd-m8120-sgs-12-speed-rear store_origin: SN region: Senegal --- # Shadow+ chain retention tech Durable sleek black alloy 12-speed precision shifting XT RD-M8100-SGS RD-M8120-SGS 12-Speed Rear Derailleur, Long Cage, Black **Brand:** shimano **Price:** 150113CFA **Availability:** ✅ In Stock ## Summary > ⚙️ Shift like a pro, ride like you own the trail. ## Quick Answers - **What is this?** XT RD-M8100-SGS RD-M8120-SGS 12-Speed Rear Derailleur, Long Cage, Black by shimano - **How much does it cost?** 150113CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/158810962-xt-rd-m8100-sgs-rd-m8120-sgs-12-speed-rear) ## Best For - shimano enthusiasts ## Why This Product - Trusted shimano brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** Crafted from premium alloy steel, this derailleur delivers Shimano’s legendary durability and performance. - • **Shadow+ Stability:** Keep your chain locked in place and noise minimized on the roughest trails with advanced Shadow+ design. - • **Long Cage Versatility:** Handle a wide range of cassette sizes effortlessly thanks to the SGS long cage configuration. - • **Sleek, Stealthy Finish:** Elevate your bike’s aesthetic with a minimalist black finish that blends style with function. - • **Effortless 12-Speed Shifting:** Experience flawless gear changes with Shimano’s cutting-edge 12-speed drivetrain technology. ## Overview The Shimano Deore XT RD-M8100-SGS is a high-performance 12-speed long cage rear derailleur engineered for mountain biking. Featuring Shimano’s Shadow+ technology for superior chain retention and quiet operation, it’s optimized for single chainring setups and built from durable alloy steel with a sleek black finish. Trusted by riders worldwide, it ensures precise, reliable shifting across a wide cassette range. ## Description Product Description The Shimano Deore XT RD-M8100 rear derailleur delivers precise and reliable 12-speed shifting for your mountain bike. Designed with Shimano's Shadow+ technology for enhanced chain retention and quiet operation, this derailleur is ideal for single chainring setups. The SGS long cage accommodates a wide range of cassettes. Durable construction and Shimano quality ensure long-lasting performance. Features a sleek black finish and includes Shimano Deore XT components. Legal Disclaimer 4 B---4 A----2009906(012 089)9/27 #52920:5e :6/5eta #60120s:10e:6/23ari,6/25:17ari 6/29:3ari---1 rtn---7/20-----1: rtn 9/24----1 RTN ON 10/15----1: on 10/19 102620S(10e:12/19b/o=3/16ar 101421(5: 5/2022 Review: Perfect - It came Shimano boxed and plastic wrapped in brand new perfect condition, as expected. Review: Deore xt M8100 - Genuine Shimano product!! ## Features - Warning:To prevent possible injury by entanglement, remove this toy when the child starts trying to get up on its hands and knees in a crawling position - Deore XT RD-M8100 12-speed rear derailleur for precise gear shifting - Shimano brand ensures quality and performance - Shadow+ design for stable chain retention - Suitable for single chainring setups ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07SWQZB46 | | Best Sellers Rank | 92,201 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 101 in Bike Rear Dérailleurs | | Brand | SHIMANO | | Brand Name | SHIMANO | | Case Material Type | Alloy Steel | | Colour | Black | | Customer Reviews | 4.7 out of 5 stars 577 Reviews | | Global Trade Identification Number | 04550170443641 | | Included Components | Shimano Deore XT | | Item Dimensions L x W x H | 17.8L x 17.8W x 12.7H centimetres | | Item Type Name | Brakes & Shifters | | Item Weight | 200 Grams | | Item weight | 200 Grams | | League | Shimano | | League Name | Shimano | | Manufacturer | Shimano Deore XT | | Manufacturer Part Number | 587830 | | Manufacturer Warranty Description | 1 year manufacturer | | Material | Other | | Material Type | Other | | Model Number | 587830 | | Mount Type | Clamp-On Mount | | Mounting type | Clamp-On Mount | | Number of Teeth | 26 | | UPC | 192790443645 | ## Product Details - **Brand:** SHIMANO - **Colour:** Black - **Item weight:** 200 Grams - **League:** Shimano - **Material:** Other ## Images ![XT RD-M8100-SGS RD-M8120-SGS 12-Speed Rear Derailleur, Long Cage, Black - Image 1](https://m.media-amazon.com/images/I/51K46DNzSPL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Perfect *by A***R on 8 June 2026* It came Shimano boxed and plastic wrapped in brand new perfect condition, as expected. ### ⭐⭐⭐⭐⭐ Deore xt M8100 *by T***. on 20 May 2026* Genuine Shimano product!! ### ⭐⭐⭐⭐⭐ Well worth the Upgarde *by M***S on 6 October 2024* Upgraded from Sram XS system to this Shimano XT RD-M8100-SGS RD-M8120-SGS 12-Speed Rear Derailleur, Long Cage also with Shimano XT8100 shifter and just wow so much smoother this is when changing gears and it just works straight out the box when fitted a little adjustment was needed but not as much with the Sram. Well worth the upgrade ## Frequently Bought Together - SHIMANO XT RD-M8100-SGS RD-M8120-SGS 12-Speed Rear Derailleur, Long Cage, Black - Shimano XT SL-M8100-L Right Clamp-Band 12-Speed Shifter, Black - SHIMANO Xt Cs-M8100 12-Speed Cassette --- ## 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.sn/products/158810962-xt-rd-m8100-sgs-rd-m8120-sgs-12-speed-rear](https://www.desertcart.sn/products/158810962-xt-rd-m8100-sgs-rd-m8120-sgs-12-speed-rear) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-06-23*