---
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: "€ 68.14"
currency: EUR
in_stock: true
reviews_count: 13
category: "Cxwxc"
url: https://www.desertcart.com.cy/products/521289397-adjustable-mtb-stem-31-8mm-70-degree-90-110-130
store_origin: CY
region: Cyprus
---

# Adjustable length: 90-145mm 3D forged aluminum alloy Angle range: -70° to +70° 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:** € 68.14
**Availability:** ✅ In Stock

## Summary

> 🚵‍♂️ Elevate your ride, conquer every trail with precision and style!

## 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?** € 68.14 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/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 Endure:** Crafted from 3D forged aluminum alloy for lightweight strength and reliable control on any terrain.
- • **Tailor Your Ride:** Adjust handlebar reach and height with precision from 90 to 145mm for ultimate comfort on long rides.
- • **Ergonomic Mastery:** Fine-tune your posture with a wide -70° to +70° angle adjustment, reducing hand fatigue and back strain.
- • **Quick & Secure Fit:** Four-bolt clamp system ensures your handlebar stays locked in place, making installation effortless and stable.
- • **Seamless Compatibility:** Designed exclusively for 31.8mm handlebars and 28.6mm fork stems, fitting most MTB, road, and city bikes.

## Overview

The CXWXC Adjustable MTB Stem offers professional-grade customization with a 90-145mm adjustable length and a versatile -70° to +70° angle range. Made from durable 3D forged aluminum alloy, it fits standard 31.8mm handlebars and 28.6mm fork stems, delivering enhanced comfort and control for mountain, road, and city cyclists alike.

## Description

Adjustable stems are a useful way to optimize and reach your handlebar height, especially for tours where you spend long hours in the saddle. This bike stem is ready to give the rider the power and power to maximize their skills and performance.

Review: Improves cycling posture and hand position. - Brilliant. Instant relief, taking the pressure off my hands and improving my sitting/cycling position. I bought 90mm and set it to 45 degrees. Easy to install.
Review: it works well - it helps with visability and not getting a sore back as you can sit upright not hunched over

## 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 |
| Batteries included? | No |
| Best Sellers Rank | 82,067 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 113 in Cycling Stems |
| Bike type | Mountain Bike |
| Color | 31.8 x 145mm |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,615) |
| Date First Available | 8 Aug. 2021 |
| Item model number | XT-AS822 |
| Manufacturer | CXWXC |
| Material type | Aluminium |
| Product Dimensions | 3.18 x 3.18 x 14.5 cm; 340 g |
| Size | 31.8 x 145mm |

## 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)

## Available Options

This product comes in different **Size** 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

### ⭐⭐⭐⭐⭐ Improves cycling posture and hand position.
*by C***O on 16 November 2025*

Brilliant. Instant relief, taking the pressure off my hands and improving my sitting/cycling position. I bought 90mm and set it to 45 degrees. Easy to install.

### ⭐⭐⭐⭐⭐ it works well
*by A***E on 4 October 2025*

it helps with visability and not getting a sore back as you can sit upright not hunched over

### ⭐⭐⭐⭐⭐ My long stuff
*by M***. on 21 July 2025*

Got the bike out the shed to try cycling to 2 miles to work, being 6'3" and mostly all leg, when my saddle was set correctly, my handle bar position became to low, I cycled everywhere looking like I was going downhill on the Tour De France.....this little gizmo, saved the day, raised my handle bars up enough so I could ride in a more comfortable upright position, easy to fit yourself, just need some Allen keys...order the spacers aswell incase you need them, then return them if you don't. I didnt , so had to wait another day for them to come. Feels well made and sturdy..

## 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)
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**Shop now:** [https://www.desertcart.com.cy/products/521289397-adjustable-mtb-stem-31-8mm-70-degree-90-110-130](https://www.desertcart.com.cy/products/521289397-adjustable-mtb-stem-31-8mm-70-degree-90-110-130)

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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-03-19*