--- product_id: 435664494 title: "Ultegra RD-R8150 Di2 Rear Derailleur - 12-Speed, Medium Cage, Black" brand: "shimano" price: "€ 1332.01" currency: EUR in_stock: true reviews_count: 3 url: https://www.desertcart.hr/products/435664494-ultegra-rd-r8150-di2-rear-derailleur-12-speed-medium-cage store_origin: HR region: Croatia --- # Integrated wireless control LED battery & status indicator 12-speed precision shifting Ultegra RD-R8150 Di2 Rear Derailleur - 12-Speed, Medium Cage, Black **Brand:** shimano **Price:** € 1332.01 **Availability:** ✅ In Stock ## Summary > ⚡ Shift into the future with Shimano Ultegra Di2 – where precision meets power. ## Quick Answers - **What is this?** Ultegra RD-R8150 Di2 Rear Derailleur - 12-Speed, Medium Cage, Black by shimano - **How much does it cost?** € 1332.01 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/435664494-ultegra-rd-r8150-di2-rear-derailleur-12-speed-medium-cage) ## 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 - • **Wireless Integration:** Built-in wireless unit, charger, and switch for clutter-free, smart connectivity. - • **Sleek & Durable Build:** Crafted from lightweight aluminum and carbon fiber for a premium, race-ready finish. - • **High Capacity Performance:** Handles up to 39 teeth chain wrap capacity and max low sprocket of 34t for diverse terrain mastery. - • **Seamless 12-Speed Shifting:** Experience ultra-smooth, lightning-fast gear changes with Shimano’s cutting-edge Di2 technology. - • **Versatile Medium Cage Design:** Compatible with 11-28, 11-30, and 11-34 cassettes for maximum drivetrain flexibility. ## Overview The Shimano Ultegra RD-R8150 Di2 Rear Derailleur is a high-performance, 12-speed electronic shifting component featuring a compact medium cage design compatible with a wide range of cassettes (11-28 to 11-34). It integrates wireless technology for seamless control and includes LED indicators for battery and status monitoring. Constructed from durable aluminum and carbon fiber, it offers a chain wrap capacity of 39 teeth and supports a max low sprocket of 34t, making it ideal for serious road cyclists seeking precision and versatility. ## Description With the fast and accurate Di2 shifting technology, the Shimano 12-speed Ultegra RD-R8150 rear derailleur is extremely versatile thanks to a single cage length option compatible with 11-28, 11-30, and 11-34 cassettes.• Compact design includes an integrated wireless unit, charger, switch• Wider range capacity• Max. low sprocket 34t• LED status indicator• Battery indicator, pairing, adjust mode etc.Brand: Shimano Review: my dream build Review: Great derailleur and good price ## Features - With the fast and accurate Di2 shifting technology, the Shimano 12-speed Ultegra RD-R8150 rear derailleur is extremely versatile thanks to a single cage length option compatible with 11-28, 11-30, and 11-34 cassettes. - Compact design includes an integrated wireless unit, charger, switch - Wider range capacity - Max. low sprocket 34t - LED status indicator.Chain Wrap Capacity (teeth): 39.Rear Der/Shifter Compatibility: Shimano Road Di2.Cage Length: Medium.Drivetrain Speeds: 12 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09YJSJNBS | | Best Sellers Rank | #175,649 in Sporting Goods ( See Top 100 in Sporting Goods ) #131 in Bike Rear Dérailleurs | | Brand | SHIMANO | | Brand Name | SHIMANO | | Case Material Type | Aluminum | | Color | Black | | Colour | Black | | Customer Reviews | 5.0 out of 5 stars 14 Reviews | | Included Components | Shimano Ultegra RD-R8150 Di2 Rear Derailleur | | Item Dimensions L x W x H | 17.8L x 17.8W x 17.8H centimeters | | Item Weight | 0.9 Pounds | | Item weight | 0.9 Pounds | | Manufacturer | SHIMANO | | Manufacturer Part Number | IRDR8150A | | Material | Aluminum Carbon Fiber | | Material Type | Aluminum Carbon Fiber | | Mount Type | Braze-On Mount | | Mounting type | Braze-On Mount | | Number of Teeth | 34 | | Product dimensions | 17.8L x 17.8W x 17.8H centimeters | | UPC | 192790874999 | ## Product Details - **Brand:** SHIMANO - **Colour:** Black - **Item weight:** 0.9 Pounds - **Material:** Aluminum Carbon Fiber - **Mounting type:** Braze-On Mount ## Images ![Ultegra RD-R8150 Di2 Rear Derailleur - 12-Speed, Medium Cage, Black - Image 1](https://m.media-amazon.com/images/I/61qtfplzLFL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ my dream build *by N***L on 8 March 2024* ### ⭐⭐⭐⭐⭐ Great derailleur and good price *by H***. on 22 November 2023* ### ⭐⭐⭐⭐⭐ Excellent Equipment *by J***A on 2 June 2023* ## Frequently Bought Together - Shimano Ultegra RD-R8150 Di2 Rear Derailleur - 12-Speed, Medium Cage, Black - SHIMANO Ultegra Fd-R8150 Di2 Front Derailleur Grey, Braze-On - SHIMANO Bt-Dn300 Battery Black, One Size --- ## 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.hr/products/435664494-ultegra-rd-r8150-di2-rear-derailleur-12-speed-medium-cage](https://www.desertcart.hr/products/435664494-ultegra-rd-r8150-di2-rear-derailleur-12-speed-medium-cage) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-05-19*