--- product_id: 640988519 title: "Bike Rear Derailleur RD-TY21B 6/7 Speed Direct/Hanger Mount Derailleur for Mo..." brand: "relwears" price: "113.96 DT" currency: TND in_stock: true reviews_count: 7 category: "Relwears" url: https://www.desertcart.tn/products/640988519-bike-rear-derailleur-rd-ty21b-6-7-speed-direct-hanger store_origin: TN region: Tunisia --- # Direct mount design 6/7 speed compatibility Durable aluminum alloy Bike Rear Derailleur RD-TY21B 6/7 Speed Direct/Hanger Mount Derailleur for Mo... **Brand:** relwears **Price:** 113.96 DT **Availability:** ✅ In Stock ## Summary > ⚡ Shift Like a Pro, Ride Like You Mean It! ## Quick Answers - **What is this?** Bike Rear Derailleur RD-TY21B 6/7 Speed Direct/Hanger Mount Derailleur for Mo... by relwears - **How much does it cost?** 113.96 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/640988519-bike-rear-derailleur-rd-ty21b-6-7-speed-direct-hanger) ## Best For - relwears enthusiasts ## Why This Product - Trusted relwears brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Universal Versatility:** Perfect fit for MTB, commuter, cruiser, and folding bikes alike. - • **Direct Mount Simplicity:** Quick, secure installation without the hassle of hangers. - • **Precision Tuning Made Easy:** Adjust limit stops and cable tension in just four simple steps. - • **Robust Aluminum Alloy Build:** Engineered for durability to withstand your toughest rides. - • **Seamless 6/7 Speed Shifting:** Effortlessly glide through gears with precision and speed. ## Overview The Relwears RD-TY21B is a high-performance 6/7 speed rear derailleur crafted from durable aluminum alloy. Designed for direct mount installation, it offers smooth, reliable shifting compatible with a wide range of bikes including mountain, commuter, cruiser, and folding models. Easy to install and maintain, this derailleur ensures stable, jitter-free rides and is a top choice for riders seeking dependable drivetrain upgrades. ## Description desertcart.com : Relwears 6/7 Speed Derailleur RD-TY21B Bike Rear Derailleur Direct Mount | 6/7 Speed Derailleur for Moutain Bike Commuter Bike Folding Bike,High Versatility,Anti-jitter,Durable : Sports & Outdoors Review: Works as supposed to - Works great Review: Shimano rear derailleur 6/7/8 speed - This product works great bike rides smooth as it should ## Features - MODEL: RD-TY21B 6/7 Speed Derailleur Silver Direct Mount ; Guide wheel teeth: 11T; Tooth capacity: 34T, Bike rear derailleur is compatible with 6/7 speed most kinds of bikes. - PERFORMANCE: The TY21B 7 speed derailleur is constructed from durable aluminum alloy material and excellent shifting performance ensure safe and stable riding. - SIMPLE TO INSTALL AND MAINTAIN:The process consists of four main steps: installation, adjusting the limit stops, tightening the cable and adjusting the tension - WIDE APPLICATION: This bicycle derailleur is suitable for MTB, mountain bikes, commuter bike, cruiser bike, folding bike etc. - NOTE: The bike rear derailleur is direct mount, not hanger mount .Please check the mount type of the original part before purchasing. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0CZKTNVX2 | | Best Sellers Rank | #78,047 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #30 in Rear Bike Derailleurs | | Brand | Relwears | | Brand Name | Relwears | | Case Material Type | Aluminum | | Color | Silver | | Customer Reviews | 4.7 out of 5 stars 46 Reviews | | Included Components | NO | | Item Weight | 0.34 kg | | Manufacturer | Relwears | | Material | Aluminum | | Material Type | Aluminum | | Model Number | Silver-RD-TY21B-Direct Mount | | Mount Type | Direct Mount | | Mounting Type | Direct Mount | | Number of Items | 1 | | Number of Teeth | 14 | | Warranty Description | 1 | ## Product Details - **Brand:** Relwears - **Color:** Silver-RD-TY21B-Direct Mount - **Material:** Aluminum - **Item Weight:** 0.34 Kilograms - **Mounting Type:** Direct Mount ## Images ![Bike Rear Derailleur RD-TY21B 6/7 Speed Direct/Hanger Mount Derailleur for Mo... - Image 1](https://m.media-amazon.com/images/I/61qvSb1pU8L.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works as supposed to *by S***N on June 13, 2026* Works great ### ⭐⭐⭐⭐⭐ Shimano rear derailleur 6/7/8 speed *by S***E on August 19, 2025* This product works great bike rides smooth as it should ### ⭐⭐⭐⭐⭐ Bike durailer *by A***O on September 1, 2025* Works awesome ## Frequently Bought Together - Bike Rear Derailleur RD-TY21B 6/7 Speed Direct Mount/Hanger Mount Derailleur for Mountain Bike Tricycle Commuter Bike Cruiser Bike - Bike Chain Kit, Single/6/7/8/9/10/11/12 Speed Multi-Function Bike Mechanic Repair Kit, Chain Breaker and Bike Link Plier with Hook and 6 Pairs Bicycle Buckle, Reusable (6/7/8 Speed Bike Chain Kit) - Single/6/7/8/9/10/11/12 Speed Bike Chain, Bike Chain for Road Mountain Racing Cycling(6/7/8 Speed Chan, 1 Set) --- ## 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.tn/products/640988519-bike-rear-derailleur-rd-ty21b-6-7-speed-direct-hanger](https://www.desertcart.tn/products/640988519-bike-rear-derailleur-rd-ty21b-6-7-speed-direct-hanger) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-30*