---
product_id: 205031741
title: "RXL SL MTB Carbon Stem MTB Stem Carbon Fiber Stem Road Bike Stem 70 31.8mm Racing Bike Handlebar Stem 6 Degree 70mm Mountain Bike Stem"
brand: "rxl sl"
price: "$94.51"
currency: USD
in_stock: true
reviews_count: 13
category: "Rxl Sl"
url: https://www.desertcart.us/products/205031741-rxl-sl-mtb-carbon-stem-mtb-stem-carbon-fiber-stem
store_origin: US
region: United States of America
---

# Ultra-light 120-148g Adjustable 6° angle, 70-130mm length Carbon+Aluminum Alloy build RXL SL MTB Carbon Stem MTB Stem Carbon Fiber Stem Road Bike Stem 70 31.8mm Racing Bike Handlebar Stem 6 Degree 70mm Mountain Bike Stem

**Brand:** rxl sl
**Price:** $94.51
**Availability:** ✅ In Stock

## Summary

> 🚴‍♂️ Ride Light, Ride Right — Elevate Every Mile with RXL SL Carbon Precision!

## Quick Answers

- **What is this?** RXL SL MTB Carbon Stem MTB Stem Carbon Fiber Stem Road Bike Stem 70 31.8mm Racing Bike Handlebar Stem 6 Degree 70mm Mountain Bike Stem by rxl sl
- **How much does it cost?** $94.51 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/205031741-rxl-sl-mtb-carbon-stem-mtb-stem-carbon-fiber-stem)

## Best For

- rxl sl enthusiasts

## Why This Product

- Trusted rxl sl brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Precision Fit:** Choose from multiple lengths (70-130mm) and a sleek 6° angle to perfectly tailor your cockpit for ultimate control and comfort.
- • **Hybrid Strength:** Carbon fiber layered over high-quality aluminum alloy delivers unmatched durability and shock resistance without the bulk.
- • **Featherweight Power:** Experience lightning-fast responsiveness with a stem weighing just 120-148g, shaving precious grams off your ride.
- • **Sleek UD Matte Finish:** Turn heads with a sophisticated matte carbon fiber look that elevates your bike’s aesthetic to pro-level status.
- • **Secure & Simple Installation:** Four-bolt clamp design ensures your handlebar stays locked in place, with easy torque specs for hassle-free setup.

## Overview

The RXL SL MTB Carbon Stem combines ultra-lightweight carbon fiber with a durable aluminum alloy cap, offering a perfect balance of strength and weight savings. Designed for road, MTB, BMX, and more, it features a 31.8mm handlebar clamp, multiple length options from 70 to 130mm, and a subtle 6° angle for ergonomic control. Its UD matte finish and four-bolt secure clamp make it a stylish, reliable upgrade for serious cyclists seeking performance and style.

## Description

desertcart.com : RXL SL 31.8 stem Carbon Fiber MTB Bike Stem Bike Stem Road Bike Carbon Stem 31.8mm Mountain Bike stem Black UD Matte 6° 90mm Ride Stems 90mm MTB stem Carbon Bike stem 31.8 stem : Sports & Outdoors

Review: Light, Strong and looks the business! - Light, Strong and looks the business! First, I should point out that this is not full carbon fiber, it is carbon over aluminum, which is not necessarily a bad thing! This is light and still gives you excellent strength. Thought the 17 degree angle was going to be too much, but it was actually perfect for my needs. This stem far exceeded my expectations and looks stunning on my Carbon Schwinn S20! Combined with a glossy carbon set of handlebars, the look is spectacular! I am quickly becoming a big fan of RXL SL Carbon products! I have purchased several items for my bike and they have all exceeded my expectations!
Review: Nice and light would buy again. - I have been using this on my gravel bike all year and have many mile off road without issues.

## Features

- 1,RXL stem road bike material:Carbon Fiber+Aluminum Alloy(the cap is high-quality Aluminum alloy); Carbon stem Appearance:UD Matte; Handle bar stem suitable for road bike, MTB,TT bike, track bike,BMX, DH, etc.
- 2,Fork diameter:28.6mm(1-1/8"); Carbon mtb stem handlebar diameter:31.8mm; RXL SL carbon stem road bike angle:6/17 Degree; Length:70/80/90/100/110/120/130mm; Road bike stem carbon weight:Approx 120~148g;
- 3,Carbon Fiber bike stem compares to Aluminum Alloy: Lighter in weight. Much more beautiful in appearance. Brighter in Color. Stronger in pressure resistance. Anti-Shock. Has proper elasticity, improving your bicycle's class in minutes.
- 4,Easy to install and remove 31.8 stem carbon fiber, four bolt bar clamp holds bar securely in position, its design makes the handle bar adjust in a perfect position. Install the carbon fiber stem correctly, please follow the specified tightening torque (4Nm), we recommend using a hexagon wrench to tighten the screw.
- 5,Any quality problems with our 31.8 stem please send us messages, we will try our best to help you. Thanks for your support! Wish you: Happy cycling with our road bike stem and good luck!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07XR62LLJ |
| Best Sellers Rank | #85,805 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #69 in Bike Stems |
| Brand Name | RXL SL |
| Color | A-Black UD Matte |
| Customer Reviews | 4.0 4.0 out of 5 stars (448) |
| Date First Available | September 10, 2019 |
| Included Components | 31.8 stem Carbon Fiber MTB Bike Stem RXL SL Bike Stem Road Bike Carbon Stem 31.8mm mountain bike stem 90mm mtb stem carbon bike stem 31.8 stem |
| Item Package Dimensions L x W x H | 7 x 2.5 x 2.4 inches |
| Item Weight | 0.18 Kilograms |
| Manufacturer | RXL SL |
| Material | carbon fiber |
| Model Name | 31.8 stem Carbon Fiber MTB Bike Stem RXL SL Bike Stem Road Bike Carbon Stem 31.8mm |
| Outer Material | carbon fiber |
| Package Weight | 0.18 Kilograms |
| Part Number | ST0069 |
| Size | 6 Degree 90mm |
| Skill Level | Advanced, Intermediate, Expert, Professional |
| Sport Type | Cycling |
| Warranty Description | 1 year warranty |

## Images

![RXL SL MTB Carbon Stem MTB Stem Carbon Fiber Stem Road Bike Stem 70 31.8mm Racing Bike Handlebar Stem 6 Degree 70mm Mountain Bike Stem - Image 1](https://m.media-amazon.com/images/I/51KhaOzwAOL.jpg)

## Available Options

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

## Questions & Answers

**Q: Is it compatible with handlebars that have a diameter larger than 31.8mm? How about handlebars of different materials?**
A: This carbon stem is designed to fit 31.8mm handlebars, we are afraid larger than 31.8mm handle bar will not suitable. And of course except for carbon material, it can be compatible for other materials like aluminum alloy.

**Q: Does its finish match descriptions accurately in customer reviews? Will it show any signs of scratching easily?**
A: Yes, the finish of this bike stem can be matched to the descriptions accurately in customer reviews. It won't show any signs of scratching easily without sharp objects and excessive force.

**Q: Is installation difficult? Does it require special tools for installation?**
A: Customers find it easy to install and remove, just using a hexagon wrench and carbon assembly gel during installation, and specifying a tightening torque of 4Nm.

**Q: Have customers noticed any vibration dampening effects from its carbon construction?**
A: The handlebar stem is made of carbon fiber, which will feel stiff and absorb vibrations when cyclcing.

**Q: Are there any reports of the stem slipping or moving on the handlebar?**
A: No, there are few reports on them. As long as the stem installed well, it won't be slipping or moving on the handlebar.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Light, Strong and looks the business!
*by R***Y on March 28, 2018*

Light, Strong and looks the business! First, I should point out that this is not full carbon fiber, it is carbon over aluminum, which is not necessarily a bad thing! This is light and still gives you excellent strength. Thought the 17 degree angle was going to be too much, but it was actually perfect for my needs. This stem far exceeded my expectations and looks stunning on my Carbon Schwinn S20! Combined with a glossy carbon set of handlebars, the look is spectacular! I am quickly becoming a big fan of RXL SL Carbon products! I have purchased several items for my bike and they have all exceeded my expectations!

### ⭐⭐⭐⭐⭐ Nice and light would buy again.
*by R***H on October 16, 2025*

I have been using this on my gravel bike all year and have many mile off road without issues.

### ⭐⭐⭐⭐ Great stem, but minor issue..
*by R***T on June 3, 2023*

I really like this stem for its light weight and sturdy construction, but had issues. Trying to attach this stem to the same brand handle bar wasn't possible with the faceplate screws provided with the stem. They were too long and the bars were still flopping around when the faceplate was tightened to the correct 4nm spec. In other words, even when tightened, the faceplate was still too far away to make a tight fit around the bars to hold. Simple fix by using the screws that came with my stock stem on my specialized bike, but still something that needs addressed with the manufacturer of these stems. Either thicken the faceplate or simply provide shorter screws that don't bottom out before making contact with the bar. Also had a very minor chip appear where the cap meets the stem and happened when tighten the top cap. Seems merely cosmetic, but time will tell. I'll update if it becomes a structural issue, but so far I'm fine with a tiny blemish and feels solid. As ive said in my handle bar review, ya get what you pay for so you should almost expect some issues or imperfections. Otherwise, spend triple or more for a brand that BETTER be flawless for thier price tag. Stay safe out there everyone!

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-16*