--- product_id: 379516358 title: "Bike Quill Stem Adapter" brand: "triwonder" price: "NT$591" currency: TWD in_stock: true reviews_count: 13 url: https://www.desertcart.tw/products/379516358-bike-quill-stem-adapter store_origin: TW region: Taiwan --- # 150mm Length - Optimal Height Boost Threaded to Threadless Conversion - Seamless Upgrade 6061 Aluminum Alloy - Lightweight & Durable Bike Quill Stem Adapter **Brand:** triwonder **Price:** NT$591 **Availability:** ✅ In Stock ## Summary > 🚴‍♂️ Elevate Your Ride, Upgrade Your Style! ## Quick Answers - **What is this?** Bike Quill Stem Adapter by triwonder - **How much does it cost?** NT$591 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/379516358-bike-quill-stem-adapter) ## Best For - triwonder enthusiasts ## Why This Product - Trusted triwonder brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Universal Compatibility:** Ideal for city, mountain, road, and commuter bikes—join thousands upgrading their ride with confidence. - • **Elevate Your Ride Comfort:** Raise your handlebars for an upright, fatigue-free posture that turns every ride into a breeze. - • **Premium 6061 Aluminum Build:** Experience unmatched strength and sleek anodized finish that lasts through every adventure. - • **Precision Fit for Versatility:** Designed to perfectly fit 28.6mm stems with options for 22.2mm or 25.4mm steerers—customize your bike effortlessly. - • **Effortless Quill to Threadless Conversion:** Upgrade your classic setup with a simple, secure installation that unlocks modern handlebar compatibility. ## Overview The TRIWONDER Bike Stem Riser Adapter is a precision-engineered 150mm quill stem converter crafted from high-strength 6061 aluminum. It raises handlebar height for improved posture and comfort, converting traditional threaded stems to modern 1-1/8" threadless systems. Compatible with multiple bike types, it offers a durable, lightweight, and easy-to-install solution backed by an 18-month warranty. ## Description Maximize Your Bike's Versatility with the TRIWONDER Bike Stem Quill Adapter - Convert Your Stem Size to 1-1/8" Threadless and Enjoy the Freedom to Customize Your Ride for Any Terrain and Adventure. Product Features: ## Features - Improve Riding Comfort: Raises your handlebar position by adding height to the stem setup, helping create a more upright riding posture and reducing unnecessary bending during daily rides or longer cycling trips - Strong 6061 Aluminum Construction: Made from high-strength 6061 aluminum alloy with a polished anodized finish, providing a lightweight and durable structure for reliable long-term use - Accurate Size Compatibility: Designed with a 1-1/8" (28.6mm) upper diameter and available in 22.2mm or 25.4mm steerer tube options. Total length measures 150mm for added height adjustment - Threaded To Threadless Conversion: Converts a traditional threaded quill stem setup to fit a 1-1/8" threadless steerer system, allowing riders to upgrade their handlebar position with ease - Secure Installation: Features a top hex bolt installation design with a recommended tightening torque of 5N·m. Compatible with city bikes, mountain bikes (MTB), road bikes, and commuter bikes requiring a quill stem conversion ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B094CKZJGZ | | Best Sellers Rank | #14,978 in Sports & Outdoors (See Top 100 in Sports & Outdoors) #57 in Bike Handlebars, Headsets & Stems | | Brand Name | TRIWONDER | | Color | Black | | Customer Reviews | 4.5 4.5 out of 5 stars (953) 4.5 out of 5 stars | | Date First Available | May 7, 2021 | | Included Components | Stem | | Item Package Dimensions L X W X H | 6.5 x 2.87 x 1.18 inches | | Manufacturer | TRIWONDER | | Material | Aluminum | | Model Name | Quill Stem Adapter | | Number Of Items | 1 | | Package Weight | 0.17 kg | | Part Number | 0919 | | Size | 22,2 x 150 mm | | Suggested Users | unisex_adult | | Warranty Description | 18-Month Warranty | ## Images ![Bike Quill Stem Adapter - Image 1](https://m.media-amazon.com/images/I/51L3e0wu4tL.jpg) ![Bike Quill Stem Adapter - Image 2](https://m.media-amazon.com/images/I/616dK6dVWBL.jpg) ![Bike Quill Stem Adapter - Image 3](https://m.media-amazon.com/images/I/71Jzumo-0WL.jpg) ![Bike Quill Stem Adapter - Image 4](https://m.media-amazon.com/images/I/61cS-TYSg4L.jpg) ![Bike Quill Stem Adapter - Image 5](https://m.media-amazon.com/images/I/81fWEd7-ZWL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good product, does fit a little snug *by on Reviewed in the United States July 12, 2026* Fits great on a 2010 KHS Urban Xscape. A little tight getting it installed (had to loosen the screw more than usual to get it into the frame, but works as advertised once in) ### ⭐⭐⭐⭐⭐ Perfect fit *by on Reviewed in the United States August 13, 2026* Well made adapter , worked perfectly. ### ⭐⭐⭐⭐⭐ Stem Replacement *by on Reviewed in the United States July 24, 2026* Great MTB stem replacements Easy to install and very durable. Highly recommended it for any bike. ## Frequently Bought Together - TRIWONDER Stem Riser Adapter Aluminum Bike Fork Stem Quill Riser Extender Extension Road Mountain Bicycle Stem Head Up Raiser Handlebar Adapter - 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.tw/products/379516358-bike-quill-stem-adapter](https://www.desertcart.tw/products/379516358-bike-quill-stem-adapter) --- *Product available on Desertcart Taiwan* *Store origin: TW* *Last updated: 2026-09-19*