--- product_id: 521289397 title: "Adjustable MTB Stem 31.8mm 70 Degree - 90/110/130/145mm Bike Stem Riser for Handlebar - Aluminum Alloy Mountain Bike Handlebar Riser Extender for MTB Road City Bike Bicycle" brand: "cxwxc" price: "B/.132" currency: PAB in_stock: true reviews_count: 13 category: "Cxwxc" url: https://www.desertcart.com.pa/products/521289397-adjustable-mtb-stem-31-8mm-70-degree-90-110-130 store_origin: PA region: Panama --- # Adjustable length: 90-145mm Angle range: -70° to +70° 3D forged aluminum alloy Adjustable MTB Stem 31.8mm 70 Degree - 90/110/130/145mm Bike Stem Riser for Handlebar - Aluminum Alloy Mountain Bike Handlebar Riser Extender for MTB Road City Bike Bicycle **Brand:** cxwxc **Price:** B/.132 **Availability:** ✅ In Stock ## Summary > 🚵‍♂️ Elevate your ride, conquer every trail in comfort! ## Quick Answers - **What is this?** Adjustable MTB Stem 31.8mm 70 Degree - 90/110/130/145mm Bike Stem Riser for Handlebar - Aluminum Alloy Mountain Bike Handlebar Riser Extender for MTB Road City Bike Bicycle by cxwxc - **How much does it cost?** B/.132 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/521289397-adjustable-mtb-stem-31-8mm-70-degree-90-110-130) ## Best For - cxwxc enthusiasts ## Why This Product - Trusted cxwxc brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** 3D forged aluminum alloy ensures lightweight strength and durability. - • **Universal Fit:** Compatible with 31.8mm handlebars and 28.6mm fork stems for MTB, road, and city bikes. - • **Ride Like a Pro:** Optimized for serious MTB racers and touring cyclists craving perfect ergonomics. - • **Tailor Your Ride:** Adjust handlebar reach and height with precision for all-day comfort. - • **Effortless Installation:** Four-bolt clamp design makes upgrading your stem quick and tool-friendly. ## Overview The CXWXC Adjustable MTB Stem offers a versatile handlebar riser solution with a 90-145mm adjustable length and a wide -70° to +70° angle range. Crafted from durable 3D forged aluminum alloy, it fits standard 31.8mm handlebars and 28.6mm fork stems, making it ideal for mountain, road, and city bikes. Easy to install and designed for riders seeking enhanced comfort and control during long rides or intense MTB sessions. ## Description Product Description Adjustable MTB Bike Stem 31.8mm Professional Bicycle Tools Bike Repair Stand, Bike Pump, Bike Helmets, Bike Tool Kit... 90/110/145mm Bike Stem Riser Can't get comfortable on your bike? Tried too many bike stems? This adjustable stems are a useful way of tweaking your handlebar height and reach, particularly for touring where you spend long hours in the saddle. Our adjustable stem is the best bet to get comfortable Adjustable Angle: -70° ~ + 70° Center Distance: 90/110/145mm Handlebar Diameter: 31.8mm Front Fork Stem Diameter 28.6mm 1. There is a top cap and a bolt that you will need to remove. 2. Remove the stem from the bike. 3. Fit the stem to bike and set it up to your liking. 4. To put the top cap back into place and screw the bolt back. Review: Does the job! - Does the job. Allows me to move handle bars up and bring them forward. Much more comfortable riding position now. Good quality and easy to fit. Review: Easy to install - Well made,easy to install just left everything on the handlebars and changed over the stem as instructed,lifted the handlebars up and made riding the bike so much more comfortable. ## Features - NOTE: PLEASE CONFIRM YOUR SIZE BEFORE YOUR PURCHASE. 90, 110 130 and 145mm are not the total long of the stem. - 【Ideal Stem for Rider】: Can't get comfortable on your bike? Tried too many bike stems? This adjustable stems are a useful way of tweaking your handlebar height and reach, particularly for touring where you spend long hours in the saddle. Our adjustable stem is the best bet to get comfortable. - 【Compatibility】: Only Fit for Handlebar diameter 31.8mm (1-1/4''), front fork stem diameter 28.6mm (1-1/8") and is available in a range of lengths – 90, 110 and 145mm. - 【Material】: The MTB stem is manufactured with a 3D Forged alloy construction that gives strength and control. The durability of this stem is very adjustable with an angle of (-70°to +70°) - 【Easy to Install】: Just connect up the original front fork stem. Four bolt bar clamp holds bar securely in position - 【Suitable for Most Bike】: Our bike stems are suited to a wide variety of bicycles, and also to the different types of riders. Ideal for MTB racing and those who take their off road biking very seriously. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09C4JFPJY | | Best Sellers Rank | 16,282 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 17 in Cycling Stems | | Bike Type | Mountain Bike | | Brand | CXWXC | | Brand Name | CXWXC | | Colour | 31.8 x 145mm | | Country Of Origin | China | | Customer Reviews | 4.7 out of 5 stars 1,730 Reviews | | Item Dimensions W x H | 32W x 145H millimetres | | Item Weight | 0.34 Kilograms | | Item weight | 0.34 Kilograms | | Manufacturer | CXWXC | | Manufacturer Part Number | XT-AS822 | | Material | Aluminium | | Material Type | Aluminium | | Model Number | XT-AS822 | | Product dimensions | 32W x 145H millimetres | ## Product Details - **Brand:** CXWXC - **Colour:** 31.8 x 145mm - **Item weight:** 0.34 Kilograms - **Material:** Aluminium - **Product dimensions:** 32W x 145H millimetres ## Images ![Adjustable MTB Stem 31.8mm 70 Degree - 90/110/130/145mm Bike Stem Riser for Handlebar - Aluminum Alloy Mountain Bike Handlebar Riser Extender for MTB Road City Bike Bicycle - Image 1](https://m.media-amazon.com/images/I/61G4+A7Z+tL.jpg) ![Adjustable MTB Stem 31.8mm 70 Degree - 90/110/130/145mm Bike Stem Riser for Handlebar - Aluminum Alloy Mountain Bike Handlebar Riser Extender for MTB Road City Bike Bicycle - Image 2](https://m.media-amazon.com/images/I/71fJCPbefDL.jpg) ![Adjustable MTB Stem 31.8mm 70 Degree - 90/110/130/145mm Bike Stem Riser for Handlebar - Aluminum Alloy Mountain Bike Handlebar Riser Extender for MTB Road City Bike Bicycle - Image 3](https://m.media-amazon.com/images/I/61YaAYZ7ESL.jpg) ![Adjustable MTB Stem 31.8mm 70 Degree - 90/110/130/145mm Bike Stem Riser for Handlebar - Aluminum Alloy Mountain Bike Handlebar Riser Extender for MTB Road City Bike Bicycle - Image 4](https://m.media-amazon.com/images/I/61rVPBtWbuL.jpg) ![Adjustable MTB Stem 31.8mm 70 Degree - 90/110/130/145mm Bike Stem Riser for Handlebar - Aluminum Alloy Mountain Bike Handlebar Riser Extender for MTB Road City Bike Bicycle - Image 5](https://m.media-amazon.com/images/I/71Rjo7e5u0L.jpg) ## Questions & Answers **Q: Is it sturdy enough for an ebike?** A: Yes **Q: Will this fit my 2006 trek sl 1000 road bike ? i wanted the 145 mm** A: If the steer tube on your TREK SL 1000 is 31.8 mm in diameter it will fit **Q: Will it work on a carbon fork with a compression plug for support?** A: I have nonidea lol...it fits on.m.y bike...seems universal. Idk **Q: What is the distance between the handlebar clamp bolts horizontally?** A: The distance center - center, 1 and 5/8’s . ## Customer Reviews ### ⭐⭐⭐⭐⭐ Does the job! *by R***S on 14 May 2026* Does the job. Allows me to move handle bars up and bring them forward. Much more comfortable riding position now. Good quality and easy to fit. ### ⭐⭐⭐⭐⭐ Easy to install *by G***Y on 26 May 2026* Well made,easy to install just left everything on the handlebars and changed over the stem as instructed,lifted the handlebars up and made riding the bike so much more comfortable. ### ⭐⭐⭐⭐⭐ Game Changer for my back 🚲 *by M***E on 8 May 2026* Why mountain bikes have to have handle bars so weirdly positioned is beyond me. The purists won’t like this adaptation, but, I bike 🚲 a lot of miles and don’t want to be bent over double, so I purchased this, my back is soooo much better and I’m sitting in a more human like way on my bike. Great quality, easy fit, game changer, excellent 👌 ## Frequently Bought Together - CXWXC Adjustable MTB Stem 31.8mm 70 Degree - 90/110/145mm Bike Stem Riser for Handlebar - Aluminum Alloy Mountain Bike Handlebar Riser Extender for MTB Road City Bike Bicycle (31.8 x 145mm) - 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) - Comfortable Seat Cushion for Men Women with Dual Shock Absorbing Ball Memory Foam Waterproof Wide Bicycle Saddle Fit for Road Bikes --- ## 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.com.pa/products/521289397-adjustable-mtb-stem-31-8mm-70-degree-90-110-130](https://www.desertcart.com.pa/products/521289397-adjustable-mtb-stem-31-8mm-70-degree-90-110-130) --- *Product available on Desertcart Panama* *Store origin: PA* *Last updated: 2026-06-17*