--- product_id: 411929510 title: "Three 1x9 Prime 9 Multi-Shift Cycling Groupset Mountain Bike - Matte Black, 9 Speed 1x Drivetrain Shifter, Rear Derailleur, Freehub Bike Cassette, Chain | Box Components" brand: "box" price: "$537.07" currency: USD in_stock: true url: https://www.desertcart.us/products/411929510-three-1x9-prime-9-multi-shift-cycling-groupset-mountain-bike store_origin: US region: United States of America --- # Multi-shift up to 3 gears/shift 9-speed 11-50T cassette X-Wide rear derailleur with limited slip clutch Three 1x9 Prime 9 Multi-Shift Cycling Groupset Mountain Bike - Matte Black, 9 Speed 1x Drivetrain Shifter, Rear Derailleur, Freehub Bike Cassette, Chain | Box Components **Brand:** box **Price:** $537.07 **Availability:** ✅ In Stock ## Summary > 🚴‍♂️ Upgrade your ride, dominate every trail with Box Three Prime 9! ## Quick Answers - **What is this?** Three 1x9 Prime 9 Multi-Shift Cycling Groupset Mountain Bike - Matte Black, 9 Speed 1x Drivetrain Shifter, Rear Derailleur, Freehub Bike Cassette, Chain | Box Components by box - **How much does it cost?** $537.07 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/411929510-three-1x9-prime-9-multi-shift-cycling-groupset-mountain-bike) ## Best For - box enthusiasts ## Why This Product - Trusted box brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Polished 126-Link Chain:** Optimized for wide/narrow chainrings with hardened pins for enduring strength. - • **Ultra-Wide 11-50T Cassette:** Conquer steep climbs and fast descents with a versatile gear range. - • **Seamless Multi-Gear Shifting:** Effortlessly shift up to 3 gears per lever pull for rapid terrain adaptation. - • **Durable Stainless Steel Braided Cable:** Engineered for long-lasting, precise shifting performance under pressure. - • **Lightweight & Resilient Rear Derailleur:** X-Wide design with limited slip clutch ensures smooth, reliable rides on varied trails. ## Overview The Box Three 1x9 Prime 9 Groupset is a high-performance mountain bike drivetrain featuring a durable 9-speed 11-50T cassette, multi-shift shifter capable of up to 3 gears per shift, and an X-Wide rear derailleur with limited slip clutch for smooth, reliable gear changes. Designed for versatility and longevity, it includes a polished 126-link chain compatible with wide/narrow chainrings, making it the perfect upgrade for riders seeking precision and durability on light to medium terrain. ## Description Did you know that you can mix and match Prime 9? Want some of the advanced features and feel of Box Three but need extra service life? Try out our Box Two/Three Hybrid Prime 9 Mtb Groupset! With this pre-configured and pre-tested option, you'll receive a Box Two shifter, Rear Derailleur, and 9 Speed Bike Chain paired to the durable Box Three 9 Speed Cassette Mtb. And you'll save almost 250 bucks while you are at it. Our Box Three tier delivers many of the same capabilities of its more famous siblings yet it's built upon a simpler platform. Bike Cassette are accessible at 11-46T or 11-50T and fashioned with steel spiders. The Bike derailleur exploits our Limited Slip clutch technology without the Tri-pack features. Shift easily with a comparable mechanism, although you'll forgo the hinged clamp and die-cast structure. And lastly, string it all together with a Prime 9 Speed Chain but without extravagant coatings. If you're looking to bring your 2/3 by bike into the 21st century, then level up with this group! INCLUDES: Box Three Prime 9 Multi Shift Shifter Box Three Prime 9 X-Wide Rear Derailleur Box Three Prime 9 11-50T Cassette Box Three Prime 9 126 Link Chain Polished IMPORTANT NOTES: Not Intended for Ebike Use Compatible with most 10,11, & 12-speed wide / narrow chainrings. Prime 9 chains must be used. ## Features - ✅ INCLUDED COMPONENTS: Enhance your cycling game with the complete Box Three Prime 9 set. Multi Shift Shifter, X-Wide Rear Derailleur, Cassettes are accessible at 11-50T and 126 Link Chain Polished. Seamless gear changes, impeccable durability, and a polished finish for the ultimate cycling experience. - ✅ SHIFTER: Crafted with a Stainless Steel Braided Cable for unparalleled durability, this Bicycle Shifter boasts a 2-Piece Pull Lever that effortlessly navigates up to 3 Gears Per Shift (Multi*). The Extruded Clamp and Resin Top Shell ensure a firm grip, making every gear change a seamless and reliable experience. - ✅ REAR DERAILLEUR: Conquer light to medium terrains effortlessly with our versatile Prime 9 Speed Derailleur. Limited Slip Clutch ensures smooth performance, Bearing Pulleys reduce friction, and Nylon Composite Knuckle adds lightweight resilience. Direct Channel Cable Stay and Die Cast Linkages, compatible with Traditional Derailleur Hangers, make it the ultimate choice for versatile riders. - ✅ CASSETTE: Transform your cycling experience with our All-Rounder 9 Speed Cassette! Built with precision, the Steel Stamped Cogs and Spiders deliver an Ultra-Wide Ratio with Consistent Progression. The ED Black Protection ensures longevity, and compatibility with HG Freehub Bodies guarantees a seamless integration into your setup. - ✅ CHAIN: Unlock your ride's potential with our All-Rounder Bicycle Chain. Boasting Polished & Treated Protection, it's not just a link, but a key to enduring performance. Durable Hardened Solid Pins, compatibility with Wide/Narrow Chainrings, and the included Connecting Link ensure reliability. Hit the road with confidence, effortless installation awaits. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07ZHR4B1X | | Brand Name | Box | | Case Material Type | Alloy Steel | | Color | Black | | Customer Reviews | 4.3 4.3 out of 5 stars (52) | | Global Trade Identification Number | 00639266097488 | | Included Components | Cassette, Chain, Rear derailleur, Shift Housing Kit, Shifter | | Item Type Name | Multi-Shift Cycling Groupset Mountain Bike | | Manufacturer | BOX COMPONENTS | | Manufacturer Part Number | BX-DT3-P9AMXW-KIT | | Material Type | Alloy Steel | | Model Number | BX-DT3-P9AMXW-KIT | | Mount Type | Clamp-On Mount | | Number of Teeth | 50 | | UPC | 639266097488 | ## Product Details - **Brand:** Box - **Colour:** Black - **Manufacturer:** BOX COMPONENTS - **Material:** Alloy Steel - **Mounting type:** Clamp-On Mount ## Images ![Three 1x9 Prime 9 Multi-Shift Cycling Groupset Mountain Bike - Matte Black, 9 Speed 1x Drivetrain Shifter, Rear Derailleur, Freehub Bike Cassette, Chain | Box Components - Image 1](https://m.media-amazon.com/images/I/61XDlu4tdpL.jpg) ## Frequently Bought Together - Box Three Prime 9 Multi Shift Non E-Bike and Single Shift E-Bike Cycling Groupset 9 Speed 1x Drivetrain Shifter, Rear Derailleur, Freehub Bike Cassette, Chain | Box Components - GANOPPER 170mm Crankset 30T 32T 34T 36T 38T Single Speed Mountain Bike Cycling Road Bike Crank Arm Set - GPMTER Bike Handlebar Grips, Single Lock on Bicycle Handle Bar, for BMX, Mountain, MTB, Beach Cruiser, Scooter, Folding Bike, Soft Non-Slip-Rubber Hand Grip Comfortable Ergonomic --- ## 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.us/products/411929510-three-1x9-prime-9-multi-shift-cycling-groupset-mountain-bike](https://www.desertcart.us/products/411929510-three-1x9-prime-9-multi-shift-cycling-groupset-mountain-bike) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-10*