--- product_id: 544218264 title: "BUCKLOS 1-1/8 Bike Headset MTB Threadless 34 44 44-50.6 44-55 44-56 41.8-52mm, Straight Tapered Tube Mountain Bikes Road Bicycle Double Sealed Bearings Headsets, for Frame Fork Expander Plug Star Nut" price: "¥5724" currency: JPY in_stock: true reviews_count: 10 url: https://www.desertcart.jp/products/544218264-bucklos-1-1-8-bike-headset-mtb-threadless-34-44 store_origin: JP region: Japan --- # Tool-free quick install with expander plug & star nut Double-sealed steel bearings for ultra-smooth steering Fits multiple MTB & road bike frame sizes (34-56mm) BUCKLOS 1-1/8 Bike Headset MTB Threadless 34 44 44-50.6 44-55 44-56 41.8-52mm, Straight Tapered Tube Mountain Bikes Road Bicycle Double Sealed Bearings Headsets, for Frame Fork Expander Plug Star Nut **Price:** ¥5724 **Availability:** ✅ In Stock ## Summary > ⚡ Upgrade your ride with precision and style—smooth steering starts here! ## Quick Answers - **What is this?** BUCKLOS 1-1/8 Bike Headset MTB Threadless 34 44 44-50.6 44-55 44-56 41.8-52mm, Straight Tapered Tube Mountain Bikes Road Bicycle Double Sealed Bearings Headsets, for Frame Fork Expander Plug Star Nut - **How much does it cost?** ¥5724 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/544218264-bucklos-1-1-8-bike-headset-mtb-threadless-34-44) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Quick & Clean Installation:** Expander plug and star nut included for a hassle-free setup in minutes—no mechanic needed. - • **Universal Fit for MTB & Road:** Compatible with a wide range of head tube diameters and 28.6mm steerer forks—one headset to rule them all. - • **Effortless Precision Steering:** Double-sealed bearings reduce friction for buttery smooth control on every ride. - • **Trusted by Over 1 Million Cyclists:** BUCKLOS delivers professional-grade quality and service that keeps riders coming back. - • **Durable & Lightweight Aluminum Build:** Premium alloy construction ensures long-lasting performance without weighing you down. ## Overview The BUCKLOS 1-1/8" threadless bike headset is engineered for MTB and road bikes with head tube sizes from 34mm to 56mm and 28.6mm steerer forks. Featuring double-sealed steel bearings and low-friction seals, it ensures smooth, responsive steering. The package includes an expander plug and star nut for quick, tool-friendly installation. Crafted from durable aluminum alloy and trusted by over 1 million cyclists worldwide, this headset offers reliable performance and easy maintenance for serious riders. ## Description Product description How to choose the right Headset? 1.Measuring head tube inside diameter up and down 2.Measuring fork outside diameter up and down How to choose the right Headset? 1.Measuring head tube inside diameter up and down 2.Measuring fork outside diameter up and down Does this heaset come with adapter to put the straight fork into the straight headtube bike frame ? Yes, this headset includes a 30mm adapter. Does this heaset come with adapter to put the straight fork into the straight headtube bike frame ? Yes, this headset includes a 30mm adapter. Is this star nut safe to use on a carbon fiber frame? It is better not to use the star nut in the carbon steering tube, but to use the expander plug. There are two choices of star nut and expander plug in this Headset, you can choose to use it according to the material of the steering tube. Is this star nut safe to use on a carbon fiber frame? It is better not to use the star nut in the carbon steering tube, but to use the expander plug. There are two choices of star nut and expander plug in this Headset, you can choose to use it according to the material of the steering tube. Is this a sealed bearing headset? Yes, it comes with double sealed bearings, not cheap exposed ball bearings. Is this a sealed bearing headset? Yes, it comes with double sealed bearings, not cheap exposed ball bearings. Review: Easy Installation and nice product - Wow great product and related description and quite easy installation Replaced straight suspension forks with lighter Tapered air shock This headset kit fit perfect and looks good Review: Fast Delivery, Great Quality and Price. - Worked perfectly, great quality and the red accent color on the black bike looks great! ## Features - Applications: Applicable to 44-44 mm aluminum alloy frame head tube, 28.6 mm straight steerer fork head tube, crown race: 30 mm. Black, red colors are optional, suitable for MTB, road bike. Easy to install, low friction face-seals on the crown races - Double-sealed Bearings: Equipped with double-sealed steel bearings to capture compression rings and reduce the number of loose parts. It is smoother and easier to maintain than ball bearings, making the handlebars light and smooth - Easy to Install: Easy to install, save time and effort, good value for money. When driven, the bike feels as smooth as butter - Headset Expander Plug: Fits front fork with tube diameter of 28.6 mm, and carbon fiber fork and mountain suspension fork are applicable. It can be used repeatedly, easy to install and disassemble, and can be installed in a few minutes with a hex wrench - Trustworthy Brand: BUCKLOS is committed to meeting customer requirements by providing great product and professional service and and has provided assistance to more than 1,000,000+ users worldwide. It is a great gift for cycling enthusiasts ## Technical Specifications | Specification | Value | |---------------|-------| | Item Package Dimensions L x W x H | 2.64 x 2.52 x 2.24 inches | | Package Weight | 0.17 Kilograms | | Item Weight | 0.17 Kilograms | | Brand Name | BUCKLOS | | Color | 44-44mm-Red | | Material | 铝 | | Manufacturer | BUCKLOS | | Included Components | Headset/star nut/Expander Plug | | Size | 44-44mm | ## Images ![BUCKLOS 1-1/8 Bike Headset MTB Threadless 34 44 44-50.6 44-55 44-56 41.8-52mm, Straight Tapered Tube Mountain Bikes Road Bicycle Double Sealed Bearings Headsets, for Frame Fork Expander Plug Star Nut - Image 1](https://m.media-amazon.com/images/I/710m5V4Tj3L.jpg) ## Available Options This product comes in different **Color** options. ## Questions & Answers **Q: How to choose the right Headset?** A: 1.Measuring head tube inside diameter up and down 2.Measuring fork outside diameter up and down **Q: Does this heaset come with adapter to put the straight fork into the straight headtube bike frame ?** A: Yes, this headset includes a 30mm adapter. **Q: Is this star nut safe to use on a carbon fiber frame?** A: It is better not to use the star nut in the carbon steering tube, but to use the expander plug. There are two choices of star nut and expander plug in this Headset, you can choose to use it according to the material of the steering tube. **Q: Is this a sealed bearing headset?** A: Yes, it comes with double sealed bearings, not cheap exposed ball bearings. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Easy Installation and nice product *by S***R on March 18, 2026* Wow great product and related description and quite easy installation Replaced straight suspension forks with lighter Tapered air shock This headset kit fit perfect and looks good ### ⭐⭐⭐⭐⭐ Fast Delivery, Great Quality and Price. *by M***I on March 29, 2026* Worked perfectly, great quality and the red accent color on the black bike looks great! ### ⭐⭐⭐⭐⭐ Must have for fork replacement *by H***5 on July 31, 2025* Replaced the forks on my bike, went this bearing solution. Old forks did not have sealed bearings like this kit. Super simple installation, 15 minutes. Do yourself the favor when you order this. Also purchase the tool to sink the star nut. You will likely use the star nut not the compression fitting. Once installed and tightened zero play in the head. Easy assembly with my new forks and existing neck and bars. Inexpensive and quality solution. Looks great. Silky smooth bearing action. --- ## 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.jp/products/544218264-bucklos-1-1-8-bike-headset-mtb-threadless-34-44](https://www.desertcart.jp/products/544218264-bucklos-1-1-8-bike-headset-mtb-threadless-34-44) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-07-05*