---
product_id: 361711848
title: "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)"
brand: "cxwxc"
price: "€ 52.50"
currency: EUR
in_stock: true
reviews_count: 13
category: "Cxwxc"
url: https://www.desertcart.sk/products/361711848-cxwxc-adjustable-mtb-stem-31-8mm-70-degree-90-110
store_origin: SK
region: Slovakia
---

# Adjustable length: 90/110/145mm for perfect fit 70° angle adjustment for ultimate ergonomic control 3D forged aluminum alloy for max strength 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)

**Brand:** cxwxc
**Price:** € 52.50
**Availability:** ✅ In Stock

## Summary

> 🚵‍♂️ Elevate your ride, conquer every trail in style!

## Quick Answers

- **What is this?** 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) by cxwxc
- **How much does it cost?** € 52.50 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/361711848-cxwxc-adjustable-mtb-stem-31-8mm-70-degree-90-110)

## 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

- • **Rock-Solid Durability:** 3D forged aluminum alloy ensures lightweight strength that lasts
- • **Effortless Installation:** Four-bolt clamp system secures your handlebar in seconds—no hassle
- • **Precision Fit Guaranteed:** Designed exclusively for 31.8mm handlebars & 28.6mm fork stems—no guesswork
- • **Tailor Your Ride Comfort:** Easily tweak handlebar height & reach for long rides without strain
- • **Versatile for Every Trail:** Perfect for MTB, road, and city bikes—upgrade your ride, wherever you roll

## Overview

The CXWXC Adjustable MTB Stem is a premium 3D forged aluminum handlebar riser designed for 31.8mm diameter bars and 28.6mm fork stems. Offering adjustable lengths of 90, 110, and 145mm and a versatile 70° angle range, it delivers customizable ergonomic positioning for mountain, road, and city bikes. Lightweight yet durable, it installs easily with a secure four-bolt clamp, making it the go-to upgrade for riders seeking comfort and control on every ride.

## Description

desertcart.com : 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) : Sports & Outdoors

Review: Minor modification needed, but otherwise, GREAT!! - I recently purchased the CXWXC Adjustable MTB 31.8mm 70 Degree - 145mm stem for my Aventon Level 2, and I must say, it has been a game-changer for my riding experience. This stem fit my bike with a minor modification, making it the perfect height to raise the handlebar almost 3 inches without the need to replace any wires. The installation process was relatively straightforward, with the only hiccup being the remounting of the headlight. The CXWXC mount where the existing light mount attaches was slightly larger, requiring me to make a small adjustment. I ended up cutting one of the mounting holes off the light mount to allow it to snug up to the new stem mount. To secure everything in place, I used two of the original short bolts to attach the handlebar to the stem and one of the new long bolts to attach the light mount onto the 4th hole of the stem. Despite this minor inconvenience, the end result was well worth it. Overall, I am extremely satisfied with the CXWXC Adjustable MTB stem. It has provided me with the perfect height adjustment I needed while maintaining the integrity of my bike's existing components. If you're looking to upgrade your ride and enhance your comfort level, I highly recommend giving this stem a try.
Review: Good product. I will purchase another one for a different bike. - This adjusts easily and holds steady when tightened. Looks good too!

## 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 | #8,006 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #3 in Bike Stems |
| Bike Type | Mountain Bike |
| Brand | CXWXC |
| Brand Name | CXWXC |
| Color | A: 31.8 x 145mm |
| Customer Reviews | 4.6 out of 5 stars 1,874 Reviews |
| Item Diameter | 31.8 millimeters |
| Item Dimensions W x H | 1.25"W x 5.71"H |
| Item Weight | 0.34 kg |
| Manufacturer | CXWXC |
| Manufacturer Part Number | XT-AS822 |
| Material | Aluminum |
| Material Type | Aluminum |
| Model Number | XT-AS822 |
| Product Dimensions | 1.25"W x 5.71"H |

## Product Details

- **Brand:** CXWXC
- **Color:** A: 31.8 x 145mm
- **Item Weight:** 0.34 Kilograms
- **Material:** Aluminum
- **Product Dimensions:** 1.25"W x 5.71"H

## Images

![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) - Image 1](https://m.media-amazon.com/images/I/61G4+A7Z+tL.jpg)

## Available Options

This product comes in different **Color** options.

## 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

### ⭐⭐⭐⭐⭐ Minor modification needed, but otherwise, GREAT!!
*by M***. on March 20, 2024*

I recently purchased the CXWXC Adjustable MTB 31.8mm 70 Degree - 145mm stem for my Aventon Level 2, and I must say, it has been a game-changer for my riding experience. This stem fit my bike with a minor modification, making it the perfect height to raise the handlebar almost 3 inches without the need to replace any wires. The installation process was relatively straightforward, with the only hiccup being the remounting of the headlight. The CXWXC mount where the existing light mount attaches was slightly larger, requiring me to make a small adjustment. I ended up cutting one of the mounting holes off the light mount to allow it to snug up to the new stem mount. To secure everything in place, I used two of the original short bolts to attach the handlebar to the stem and one of the new long bolts to attach the light mount onto the 4th hole of the stem. Despite this minor inconvenience, the end result was well worth it. Overall, I am extremely satisfied with the CXWXC Adjustable MTB stem. It has provided me with the perfect height adjustment I needed while maintaining the integrity of my bike's existing components. If you're looking to upgrade your ride and enhance your comfort level, I highly recommend giving this stem a try.

### ⭐⭐⭐⭐⭐ Good product. I will purchase another one for a different bike.
*by A***R on August 18, 2026*

This adjusts easily and holds steady when tightened. Looks good too!

### ⭐⭐⭐⭐⭐ Impressively well built piece!
*by K***R on June 5, 2024*

Due to a wrist injury, I could no longer tolerate the straight-forward 105mm bar riser on my mtn bike. This looked like a potential solution, so I ordered it. I didn't know what to expect, but it is a VERY sturdy, nicely-adjustable (with serrated engagement to prevent slippage or movement of your setting), good-looking part. It absolutely does the job and has no flex that I can notice. I have it set on the tallest possible orientation and it makes a world of difference. Installs in minutes. It's heavier than a hollow piece of aluminum, but is a huge bargain for this price. You will not be disappointed. Note: be sure you check/set your steering head play after install as you will likely remove the top cap on your steering stem during install.

## 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)
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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-08-27*