--- product_id: 396900209 title: "TRIWONDER Riser Bike Extension Adapter 22.2 mm or 25.4 mm x 150 mm Extension Stem Diver Fork for Mountain Bike MTB" brand: "triwonder" price: "€ 32.31" currency: EUR in_stock: true reviews_count: 5 category: "Triwonder" url: https://www.desertcart.gr/products/396900209-triwonder-riser-bike-extension-adapter-22-2-mm-or-25 store_origin: GR region: Greece --- # 150mm Extension - optimal handlebar height boost Universal Fit - fits 22.2mm & 25.4mm steerer tubes 6061 Aluminum Alloy - durable & lightweight TRIWONDER Riser Bike Extension Adapter 22.2 mm or 25.4 mm x 150 mm Extension Stem Diver Fork for Mountain Bike MTB **Brand:** triwonder **Price:** € 32.31 **Availability:** ✅ In Stock ## Summary > 🚵‍♂️ Rise Above the Rest – Elevate your MTB game with TRIWONDER! ## Quick Answers - **What is this?** TRIWONDER Riser Bike Extension Adapter 22.2 mm or 25.4 mm x 150 mm Extension Stem Diver Fork for Mountain Bike MTB by triwonder - **How much does it cost?** € 32.31 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/396900209-triwonder-riser-bike-extension-adapter-22-2-mm-or-25) ## 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 - • **Elevate Your Ride:** Boost handlebar height by 150mm for superior control and comfort. - • **All-Season Durability:** Engineered to withstand every ride, rain or shine, for year-round performance. - • **Premium Build Quality:** Crafted from polished anodized 6061 aluminum alloy for strength without the weight. - • **Seamless Compatibility:** Converts threaded quill stems to threadless setups, fitting most 1-1/8” (28.6mm) bikes effortlessly. - • **Effortless Installation:** Quick and easy setup means you’re back on the trail faster—no mechanic needed. ## Overview The TRIWONDER Riser Bike Extension Adapter is a 150mm quill stem converter made from durable 6061 anodized aluminum alloy. Designed to raise your mountain bike’s handlebar height, it fits both 22.2mm and 25.4mm steerer tubes and converts threaded quill stems to threadless setups. Lightweight, easy to install, and compatible with most 1-1/8” bikes, it enhances riding comfort and control across all seasons. ## Description Product description TRIWONDER ADAPTER Going out and getting closer to nature, that's why TRIWONDER exists. The outdoors is the pursuit of full-body adventure to relax, and our TRIWONDER ADAPTER aims to provide comfort for your outdoor adventures. Just enjoy your trip and we will become your support. Here we are your partner and also your armor. SPECIFICATIONS The stem is made of aluminum alloy, which is strong and durable, anti-corrosion, no rust, high toughness and no deformation.With this adapter, it is easier and more comfortable to mount the bike uphill.Installation is simple, just connect the original bike fork. Review: vélo - Modifier un vélo de course vintage Review: Ahead is te breed - Bij mij bleek het niet te passen in combinatie met een Ahead stuurpen, beide hadden dezelfde maat dus of de stuurpen of deze adapter hebben fouten. ## Features - ✅ Material - The quill stem converter is made of 6061 Aluminium Alloy With polished anodized finish - ✅ Size - Base Diameter(Upper diameter): 1 1/8” (28.6mm); Steerer Tube Diameter: 22.2mm/25.4mm; Total Length: 150mm - ✅ Raises the height of your handlebars by increasing the height of your bike stem - ✅ Easy installation, converts a threaded quill stem setup to threadless - ✅ Perfect for Most Bikes: The quill riser extender is suitable for most bike with 1-1/8''(28.6mm) threadless steerer ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B094CKZJGZ | | Batteries Included? | No | | Brand | TRIWONDER | | Color | Black | | Customer Reviews | 4.5 4.5 out of 5 stars (868) | | Date First Available | 14 July 2021 | | Item model number | 0919 | | Manufacturer | TRIWONDER | | Number of Items | 1 | | Package Dimensions | 16.51 x 7.29 x 3 cm; 168 g | | Season | all-season | | Size | 22,2 x 150 mm | ## Images ![TRIWONDER Riser Bike Extension Adapter 22.2 mm or 25.4 mm x 150 mm Extension Stem Diver Fork for Mountain Bike MTB - Image 1](https://m.media-amazon.com/images/I/51L3e0wu4tL.jpg) ![TRIWONDER Riser Bike Extension Adapter 22.2 mm or 25.4 mm x 150 mm Extension Stem Diver Fork for Mountain Bike MTB - Image 2](https://m.media-amazon.com/images/I/616dK6dVWBL.jpg) ![TRIWONDER Riser Bike Extension Adapter 22.2 mm or 25.4 mm x 150 mm Extension Stem Diver Fork for Mountain Bike MTB - Image 3](https://m.media-amazon.com/images/I/71Jzumo-0WL.jpg) ![TRIWONDER Riser Bike Extension Adapter 22.2 mm or 25.4 mm x 150 mm Extension Stem Diver Fork for Mountain Bike MTB - Image 4](https://m.media-amazon.com/images/I/61cS-TYSg4L.jpg) ![TRIWONDER Riser Bike Extension Adapter 22.2 mm or 25.4 mm x 150 mm Extension Stem Diver Fork for Mountain Bike MTB - Image 5](https://m.media-amazon.com/images/I/81fWEd7-ZWL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ vélo *by J***S on 18 June 2024* Modifier un vélo de course vintage ### ⭐⭐ Ahead is te breed *by G***S on 23 January 2025* Bij mij bleek het niet te passen in combinatie met een Ahead stuurpen, beide hadden dezelfde maat dus of de stuurpen of deze adapter hebben fouten. ### ⭐⭐⭐⭐⭐ Worth it *by K***S on 14 May 2025* Brings a vintage bike into the modern age. Great product ## 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.gr/products/396900209-triwonder-riser-bike-extension-adapter-22-2-mm-or-25](https://www.desertcart.gr/products/396900209-triwonder-riser-bike-extension-adapter-22-2-mm-or-25) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-07-17*