--- product_id: 541164739 title: "28.6mm x 31.8mm Adjustable Bicycle Handlebar Stem, 90mm/110mm, 0-90 Degree Rise, Short Stem for E Bike" brand: "aynaxcol" price: "259 Lei" currency: RON in_stock: true reviews_count: 9 category: "Aynaxcol" url: https://www.desertcart.ro/products/541164739-28-6mm-x-31-8mm-adjustable-bicycle-handlebar-stem-90mm store_origin: RO region: Romania --- # Adjustable 0°-90° rise for perfect fit Internal cable routing for clean setup 3D forged alloy for max strength 28.6mm x 31.8mm Adjustable Bicycle Handlebar Stem, 90mm/110mm, 0-90 Degree Rise, Short Stem for E Bike **Brand:** aynaxcol **Price:** 259 Lei **Availability:** ✅ In Stock ## Summary > 🚴‍♂️ Elevate your ride, own every mile with precision and style! ## Quick Answers - **What is this?** 28.6mm x 31.8mm Adjustable Bicycle Handlebar Stem, 90mm/110mm, 0-90 Degree Rise, Short Stem for E Bike by aynaxcol - **How much does it cost?** 259 Lei with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/541164739-28-6mm-x-31-8mm-adjustable-bicycle-handlebar-stem-90mm) ## Best For - aynaxcol enthusiasts ## Why This Product - Trusted aynaxcol brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Perfect Compatibility:** Designed exclusively for 28.6mm fork steerers and 31.8mm handlebars—know your fit, ride with confidence. - • **Customizable Riding Angle:** Adjust from 0° to 90° rise to find your ideal upright or aggressive posture effortlessly. - • **Precision Forged Strength:** Crafted from 3D forged alloy to eliminate handlebar wobble and boost riding safety. - • **Seamless Cable Management:** Integrated internal cable routing keeps your e-bike’s cables sleek and tangle-free. - • **Quick & Tool-Free Adjustment:** Easily dial in your perfect position with a simple bolt tweak—no mechanic needed. ## Overview The Aynaxcol Adjustable Bicycle Handlebar Stem is a professional-grade 3D forged alloy stem designed for 28.6mm fork steerers and 31.8mm handlebars. Offering a versatile 0° to 90° adjustable rise and internal cable routing, it ensures a comfortable, ergonomic riding position and a clean, streamlined setup—perfect for e-bike enthusiasts seeking both performance and style. ## Description desertcart.com : Aynaxcol 28.6mm x 31.8mm Bicycle Riser Extension Adjustable Handlebar Stem 90mm 0-90 Degree Adjustable Bicycle Stems Short Handlebar Stem for E Bike Bicycle (90mm) : Sports & Outdoors Review: Perfect Fit easy install - Fit perfectly on my fun hang e-bike. Easy install. Enables me to sit in a more upright position with less weight on my wrist and shoulders. Easily adjustable and sturdy. Review: Enjoy riding again! - This was a game-changer for me. The stem extension and its adjustable angle all but eliminated the pressure on my hand, wrists, and shoulders. I’m now able ride for miles without discomfort. ## Features - Material: The professional level stem is made of 3D forged alloy, ensures no handlebar movements and safer riding - Fits: The stem is compatible with 1-1/8" = 28.6mm fork steerer only. NOT compatible with 1" fork steerer. Handlebar bar bore: 31.8mm only, NOT for 25.4mm. Please check your bike fork and handlebar size before purchasing - Size: 90mm for choice, 0º to 90º, with its wide adjustable range, it can set up a comfortable upright or racing riding position easily - Internal cable routing: Internal cable routing headset and stem for E bike. It is good to run 2 cables through the adjustable stem - Easy to set up: Simply using the adjustment bolt to achieve your perfect cycling position ## Technical Specifications | Specification | Value | |---------------|-------| | Item Package Dimensions L x W x H | 8.94 x 3.39 x 2.05 inches | | Package Weight | 0.4 Kilograms | | Item Dimensions LxWxH | 6.3 x 3.54 x 1.77 inches | | Item Weight | 13.92 ounces | | Brand Name | Aynaxcol | | Manufacturer | Aynaxcol | | Part Number | 768590727805 | | Size | 90mm | ## Images ![28.6mm x 31.8mm Adjustable Bicycle Handlebar Stem, 90mm/110mm, 0-90 Degree Rise, Short Stem for E Bike - Image 1](https://m.media-amazon.com/images/I/61dxtRnCXyL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Perfect Fit easy install *by C***D on July 17, 2026* Fit perfectly on my fun hang e-bike. Easy install. Enables me to sit in a more upright position with less weight on my wrist and shoulders. Easily adjustable and sturdy. ### ⭐⭐⭐⭐⭐ Enjoy riding again! *by S***0 on August 9, 2026* This was a game-changer for me. The stem extension and its adjustable angle all but eliminated the pressure on my hand, wrists, and shoulders. I’m now able ride for miles without discomfort. ### ⭐⭐⭐⭐⭐ Makes my bike a lot more comfortable to ride *by B***R on May 31, 2026* I wanted to be able to raise and adjust my handlebars so I could ride more upright. This made it more comfortable for me to ride and, being adjustable, it allows me to move it until I get the fit I prefer. I kind of wish I had gotten the longer/taller version but I was afraid my cables wouldn't have been long enough. Be sure to measure what size your bike needs. ## Frequently Bought Together - Aynaxcol 28.6mm x 31.8mm Bicycle Riser Extension Adjustable Handlebar Stem 90mm/ 110mm 0-90 Degree Adjustable Bicycle Stems Short Handlebar Stem for E Bike Bicycle - LITEONE Bike Stem Riser Bike Fork Stem Extender Bicycle Handlebar Raiser Head Up Adapter Suitable for Mountain Bike, Road Bike, MTB, BMX, Fixie (Aluminium Alloy, Adjustable, Black) - Bike Stem Riser Wake Bike Fork Stem Extender Bicycle Handlebar Raiser Head Up Adapter Suitable for Mountain Bike, Road Bike, MTB, BMX (Aluminium Alloy, Adjustable, Black) --- ## 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.ro/products/541164739-28-6mm-x-31-8mm-adjustable-bicycle-handlebar-stem-90mm](https://www.desertcart.ro/products/541164739-28-6mm-x-31-8mm-adjustable-bicycle-handlebar-stem-90mm) --- *Product available on Desertcart Romania* *Store origin: RO* *Last updated: 2026-08-31*