--- product_id: 567103797 title: "BUCKLOS 11PCS Headset Spacer Bike 1-1/8 Fork Stem Aluminum Carbon Fiber Washer - 20 15 10 5 3 2 mm Mountain Bikes Road Bicycle Threadless Ultralight Headset Spacers, fit MTB Road BMX Folding Bikes." price: "¥3911" currency: JPY in_stock: true reviews_count: 8 url: https://www.desertcart.jp/products/567103797-bucklos-11pcs-headset-spacer-bike-1-1-8-fork-stem store_origin: JP region: Japan --- # 6 sizes from 2mm to 20mm Ultra-lightweight aluminum & carbon fiber Fits MTB, Road, BMX & Folding bikes BUCKLOS 11PCS Headset Spacer Bike 1-1/8 Fork Stem Aluminum Carbon Fiber Washer - 20 15 10 5 3 2 mm Mountain Bikes Road Bicycle Threadless Ultralight Headset Spacers, fit MTB Road BMX Folding Bikes. **Price:** ¥3911 **Availability:** ✅ In Stock ## Summary > 🚴‍♀️ Elevate your ride with precision spacers that blend style, strength, and featherlight finesse! ## Quick Answers - **What is this?** BUCKLOS 11PCS Headset Spacer Bike 1-1/8 Fork Stem Aluminum Carbon Fiber Washer - 20 15 10 5 3 2 mm Mountain Bikes Road Bicycle Threadless Ultralight Headset Spacers, fit MTB Road BMX Folding Bikes. - **How much does it cost?** ¥3911 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/567103797-bucklos-11pcs-headset-spacer-bike-1-1-8-fork-stem) ## 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 - • **Seamless Integration:** Eliminates headset voids for a smooth, vibration-free ride. - • **Featherweight Strength:** Crafted from aerospace-grade carbon fiber and tapered aluminum for up to 40% weight savings. - • **Sleek & Durable Design:** Automatic cutting technology ensures smooth edges and long-lasting temperature resistance. - • **Universal Compatibility:** Designed for 1-1/8" (28.6mm) forks, ideal for mountain, road, BMX, and folding bikes. - • **Precision Fit, Every Ride:** 11-piece set with varied thicknesses to customize your perfect stem height. ## Overview This 11-piece headset spacer set offers a versatile range of sizes (2mm to 20mm) made from premium carbon fiber and aluminum alloy. Designed for 1-1/8" fork stems, these spacers provide a lightweight, durable solution to customize stem height and eliminate headset gaps, enhancing bike fit and ride quality across MTB, road, BMX, and folding bikes. ## Description Product description What are these spacers actually for? Used to increase the height of the stem,find the riding height that suits you through the combination of different height washers. It also eliminates voids between the fork, headset and stem. What are these spacers actually for? Used to increase the height of the stem,find the riding height that suits you through the combination of different height washers. It also eliminates voids between the fork, headset and stem. What is the OD? Size detail: inner diameter is approx. 28.6 mm while the external is 34.5 mm. What is the OD? Size detail: inner diameter is approx. 28.6 mm while the external is 34.5 mm. Can I buy them all at one height, request one length? NO.these are packaged as a set. Can I buy them all at one height, request one length? NO.these are packaged as a set. Review: Nice looking inexpensive solution - Purchased along with sealed bearings head kit when I replaced forks on bike. Comes with wide assortment of sizes so you can get the correct match for your application. Perfect fit, easy to install, and must have item to put my bike back together. Worked perfect with new forks and existing neck and bars. Review: Works great - Works great ## Features - Pakage Include: Package includes 11 pcs headset spacer in 6 sizes, 3 x 2 mm, 2 x 3 mm, 2 x 5 mm, 2 x 10 mm, 1 x 15 mm, 1 x 20 mm. A quantity and size sufficient for the bike. Please check quantity details before purchasing - Two Choices of Materials: The carbon fibre is made of woven carbon, with restrained appearance, good strength, excellent impact resistance. The Aluminum Alloy spacers are available in a wide range of colours and are stylish, thin and light with strength - Applications: Inner diameter 1-1/8" / 28.6 mm, the spacers total weight is approx. 41.8 g for carbon fibre and 31.8 g for aluminium. Suitable for most bikes such as mountain bikes, road bikes, BMX etc. A must have accessory for riding enthusiasts - Sophisticated Appearance: There is automatic cutting technology for smooth edges, and they are available in carbon fibre weave as well as forged aluminium for excellent temperature resistance. These bike accessories are long-lasting and resistant to damage - Distinctive Design: The unique tapered design of the ultra-lightweight aluminium spacer effectively reduces the thickness of the spacers while still providing strength, saving up to 40% weight compared to conventional aluminium spacers ## Technical Specifications | Specification | Value | |---------------|-------| | Item Package Dimensions L x W x H | 5.79 x 5.39 x 0.98 inches | | Package Weight | 0.03 Kilograms | | Item Weight | 0.03 Kilograms | | Brand Name | BUCKLOS | | Color | Red | | Manufacturer | BUCKLOS | ## Images ![BUCKLOS 11PCS Headset Spacer Bike 1-1/8 Fork Stem Aluminum Carbon Fiber Washer - 20 15 10 5 3 2 mm Mountain Bikes Road Bicycle Threadless Ultralight Headset Spacers, fit MTB Road BMX Folding Bikes. - Image 1](https://m.media-amazon.com/images/I/61jZwvEV7jL.jpg) ## Available Options This product comes in different **Color** options. ## Questions & Answers **Q: What are these spacers actually for?** A: Used to increase the height of the stem,find the riding height that suits you through the combination of different height washers. It also eliminates voids between the fork, headset and stem. **Q: What is the OD?** A: Size detail: inner diameter is approx. 28.6 mm while the external is 34.5 mm. **Q: Can I buy them all at one height, request one length?** A: NO.these are packaged as a set. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Nice looking inexpensive solution *by H***5 on July 31, 2025* Purchased along with sealed bearings head kit when I replaced forks on bike. Comes with wide assortment of sizes so you can get the correct match for your application. Perfect fit, easy to install, and must have item to put my bike back together. Worked perfect with new forks and existing neck and bars. ### ⭐⭐⭐⭐⭐ Works great *by T***N on March 30, 2026* Works great ### ⭐⭐⭐⭐ Great buy *by R***Y on August 10, 2025* Great variety of sizes. ## Frequently Bought Together - BUCKLOS 11PCS Headset Spacer Bike 1-1/8 Fork Stem Aluminum Carbon Fiber Washer - 20 15 10 5 3 2 mm Mountain Bikes Road Bicycle Threadless Ultralight Headset Spacers, fit MTB Road BMX Folding Bikes. - 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 - 31.8 Stem 45mm Bike Stem Wake Mountain Bike Stem Short Handlebar Stem for Most Bicycle, Road Bike, MTB, BMX, Fixie Gear, Cycling (Aluminum Alloy, Black Blue Gold Red) --- ## 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/567103797-bucklos-11pcs-headset-spacer-bike-1-1-8-fork-stem](https://www.desertcart.jp/products/567103797-bucklos-11pcs-headset-spacer-bike-1-1-8-fork-stem) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-10-17*