--- product_id: 352178818 title: "Bike Quill Stem Adapter Riser, 22.2mm 25.4mm Bicycle Fork Stem Extender 28.6mm MTB Handlebar Head Up Adaptor for Mountain Bike Road Bicycle, 150mm Threadless Size Converter" brand: "azarxis" price: "¥5149" currency: JPY in_stock: true reviews_count: 13 category: "Azarxis" url: https://www.desertcart.jp/products/352178818-bike-quill-stem-adapter-riser-22-2mm-25-4mm-bicycle store_origin: JP region: Japan --- # 150mm length - optimal handlebar height boost Threadless conversion - easy install & versatile 6061 Aluminium Alloy - durable & lightweight Bike Quill Stem Adapter Riser, 22.2mm 25.4mm Bicycle Fork Stem Extender 28.6mm MTB Handlebar Head Up Adaptor for Mountain Bike Road Bicycle, 150mm Threadless Size Converter **Brand:** azarxis **Price:** ¥5149 **Availability:** ✅ In Stock ## Summary > 🚴‍♂️ Elevate Your Ride, Command the Road! ## Quick Answers - **What is this?** Bike Quill Stem Adapter Riser, 22.2mm 25.4mm Bicycle Fork Stem Extender 28.6mm MTB Handlebar Head Up Adaptor for Mountain Bike Road Bicycle, 150mm Threadless Size Converter by azarxis - **How much does it cost?** ¥5149 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/352178818-bike-quill-stem-adapter-riser-22-2mm-25-4mm-bicycle) ## Best For - azarxis enthusiasts ## Why This Product - Trusted azarxis brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Universal Compatibility:** Fits most 1-1/8" (28.6mm) threadless steerer tubes with 22.2mm or 25.4mm quill stems—upgrade any bike effortlessly. - • **Rock-Solid Stability Lock:** Dual-screw dislocation lock ensures a firm, wobble-free connection for confident control on every trail or city street. - • **Premium 6061 Aluminium Alloy:** Engineered for strength, corrosion resistance, and a sleek anodized finish that lasts through every ride. - • **Ergonomic Handlebar Elevation:** Boost your riding comfort by raising your handlebar height by 150mm, reducing strain on your back and wrists. - • **Seamless Threadless Conversion:** Transform your classic threaded quill stem into a modern threadless setup in minutes—no special tools required. ## Overview The Azarxis Bike Quill Stem Adapter Riser is a precision-crafted 6061 aluminium alloy extender designed to convert threaded quill stems to threadless setups while raising handlebar height by 150mm. Compatible with most 28.6mm threadless steerer tubes, it offers durable, corrosion-resistant performance with easy installation and a secure dual-screw locking mechanism—perfect for enhancing comfort and control on mountain and road bikes alike. ## Description Product Description Azarxis is an outdoor sports brand that advocates "ENJOY SPORTS, ENJOY OUTDOORS ADVENTURES". It has been committed to the research and development of running equipment and outdoor sports products. Azarxis provides convenience and protection for your outdoor adventures. BETTER ENJOY SPORTS! BETTER ENJOY OUTDOOR ADVENTURES! Specifications Material: 6061 Aluminium Alloy Color: Black Weight: about 180g Total Length: 150mm Base Diameter(Upper diameter): 28.6mm Steerer Tube Diameter: 22.2mm/25.4mm Fork Stem Diamater: 28.6mm (standard) Applicable Object: Most bikes Package Included: Bike Fork Stem Quill Riser Extension X 1 Please choose the correct size before purchasing to avoid causing unnecessary returns. Easy Installation Just connect up the original front fork stem. Converts a threaded quill setup to threadless Dislocation Lock By tightening the screws, the two parts of the lifting core will be locked in a dislocation and will be firmly fixed in the front fork tube. Durable Made of 6061 Aluminium Alloy with polished anodized finish, light weight, sturdy, no deformation, corrosion-resistant, rust-free. Review: Good replacement - Replaced on an old bike and used a MTB handlebar riser Review: Brilliant - Better than exepected and superb build quality. Fitted my city bike staright away and has made cycling more comfortable with new handle bars. ## Features - 🌵 MATERIAL - 6061 Aluminium Alloy with polished anodized finish, strong, secure, durable - 🌵 SIZE - Base Diameter (Upper Diameter): 1 1/8" (28.6mm); Steerer Tube Diameter: 22.2mm / 25.4mm; Total Length: 150mm - 🌵 PRACTICAL - Rise the height of the handlebar by increasing the height of the stem - 🌵 EASY INSTALLATION - Just connect up the original front fork stem. Converts a threaded quill setup to threadless - 🌵 VERSATILE - The quill riser extender is suitable for most bike with 1-1/8'' (28.6mm) threadless steerer. Perfect for Most Bikes ## Technical Specifications | Specification | Value | |---------------|-------| | Bike type | Road Bike | | Color | Black | | Size | 22,2mm | | Material type | Aluminium | | Number of items | 1 | | Seasons | All Seasons | | Sport | Cycling | | Included components | Bike Quill Stem Adapter | | Batteries included? | No | | Brand | Azarxis | | Manufacturer | Azarxis | | Item model number | AZ-OS0919 | | Product Dimensions | 15 x 0.22 x 0.1 cm; 180 g | | ASIN | B094J8SHVB | ## Product Details - **Colour:** Black - **Brand:** Azarxis - **Material:** Aluminium - **Product dimensions:** 15L x 0.2W centimetres - **Item weight:** 180 Grams ## Images ![Bike Quill Stem Adapter Riser, 22.2mm 25.4mm Bicycle Fork Stem Extender 28.6mm MTB Handlebar Head Up Adaptor for Mountain Bike Road Bicycle, 150mm Threadless Size Converter - Image 1](https://m.media-amazon.com/images/I/51sYMt1RAQL.jpg) ![Bike Quill Stem Adapter Riser, 22.2mm 25.4mm Bicycle Fork Stem Extender 28.6mm MTB Handlebar Head Up Adaptor for Mountain Bike Road Bicycle, 150mm Threadless Size Converter - Image 2](https://m.media-amazon.com/images/I/71IgdfbmhWL.jpg) ![Bike Quill Stem Adapter Riser, 22.2mm 25.4mm Bicycle Fork Stem Extender 28.6mm MTB Handlebar Head Up Adaptor for Mountain Bike Road Bicycle, 150mm Threadless Size Converter - Image 3](https://m.media-amazon.com/images/I/71hHa0tbSLL.jpg) ![Bike Quill Stem Adapter Riser, 22.2mm 25.4mm Bicycle Fork Stem Extender 28.6mm MTB Handlebar Head Up Adaptor for Mountain Bike Road Bicycle, 150mm Threadless Size Converter - Image 4](https://m.media-amazon.com/images/I/71Qymh7u9vL.jpg) ![Bike Quill Stem Adapter Riser, 22.2mm 25.4mm Bicycle Fork Stem Extender 28.6mm MTB Handlebar Head Up Adaptor for Mountain Bike Road Bicycle, 150mm Threadless Size Converter - Image 5](https://m.media-amazon.com/images/I/71nRzhu3HAL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good replacement *by P***L on 24 June 2025* Replaced on an old bike and used a MTB handlebar riser ### ⭐⭐⭐⭐⭐ Brilliant *by 3***S on 6 December 2023* Better than exepected and superb build quality. Fitted my city bike staright away and has made cycling more comfortable with new handle bars. ### ⭐⭐⭐⭐ Value for money. *by R***S on 18 December 2022* Works well, helped convert an old MTB build I've recently finished. Now able to put decent 31.8 bars on, happy days. Giving old bikes a second chance. ## Frequently Bought Together - Azarxis Bike Fork Stem Quill Riser Extension Road Mountain Bicycle Stem Head Up Handlebar Riser Adapter 1-1/8 Inch φ22.2mm 25.4mm 150mm - 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) - 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.jp/products/352178818-bike-quill-stem-adapter-riser-22-2mm-25-4mm-bicycle](https://www.desertcart.jp/products/352178818-bike-quill-stem-adapter-riser-22-2mm-25-4mm-bicycle) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-07-05*