---
product_id: 1839638
title: "Race Face Atlas Mountain Bike Stem"
brand: "raceface"
price: "AR$307316"
currency: ARS
in_stock: true
category: "Race Face"
url: https://www.desertcart.com.ar/products/1839638-race-face-atlas-mountain-bike-stem
store_origin: AR
region: Argentina
---

# Four-bolt clamp for rock-solid handlebar grip 6061-T6 aluminum for lightweight strength Stress-riser-free faceplate for durability Race Face Atlas Mountain Bike Stem

**Brand:** raceface
**Price:** AR$307316
**Availability:** ✅ In Stock

## Summary

> 🚵‍♂️ Ride Tough, Ride Light, Ride Fearless

## Quick Answers

- **What is this?** Race Face Atlas Mountain Bike Stem by raceface
- **How much does it cost?** AR$307316 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/1839638-race-face-atlas-mountain-bike-stem)

## Best For

- raceface enthusiasts

## Why This Product

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

## Key Features

- • **Ride with Confidence:** Trusted by pros and rated 4.8 stars by 200+ riders who demand performance
- • **Premium Lightweight Build:** Crafted from aerospace-grade 6061-T6 aluminum weighing just 155g for agile control
- • **Engineered for Versatility:** Bridges AM and FR/DH riding needs with perfect balance of lightness and toughness
- • **Unmatched Handlebar Security:** Four-bolt clamp design locks your bar firmly in place, no slip, no stress
- • **Durability Without Compromise:** Innovative faceplate eliminates stress risers that cause bending or breakage

## Overview

The Race Face Atlas Mountain Bike Stem is a high-performance, 6061-T6 aluminum stem designed to meet the demands of aggressive all-mountain and downhill riders. Featuring a four-bolt clamp and a stress-riser-free faceplate, it ensures maximum handlebar security and durability while weighing only 155 grams. With a sleek black finish and a 31.8mm clamp diameter, it’s the trusted choice for riders seeking versatility and reliability on every trail.

## Description

Atlas is designed to bridge the needs of AM and FR/DH riders: light enough for AM, tough enough for FR and DH, providing the ultimate in versatility.

## Features

- 6061-T6 aluminum
- Four bolt bar clamp holds bar securely in position, interlocking U-Shaped Handlebar Clamp Geometry
- Faceplate eliminates ''stress risers'' which cause your bar to bend or break

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B008CC2XTE |
| Best Sellers Rank | #87,778 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #76 in Bike Stems |
| Bike Type | Mountain Bike |
| Brand | RaceFace |
| Brand Name | RaceFace |
| Color | Black |
| Customer Reviews | 4.8 out of 5 stars 203 Reviews |
| Global Trade Identification Number | 00821973186832 |
| Included Components | Race Face Atlas Mountain Bike Stem (Black, 31.8-mm Clamp, 50-mm, 1-1/8-Inch) |
| Item Type Name | Stems |
| Item Weight | 155 g |
| Item Width | 7 inches |
| Manufacturer | RaceFace |
| Manufacturer Part Number | 91-4510K |
| Manufacturer Warranty Description | Limited Manufacturer |
| Material | Aluminum |
| Material Type | Aluminum |
| Model Number | ST12A31.850X0BLK |
| Number of Items | 1 |
| OEM Equivalent Part Number | ST12A31.850X0BLK |
| UPC | 821973186832 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** RaceFace
- **Color:** Black
- **Global Trade Identification Number:** 00821973186832
- **Item Weight:** 155 Grams
- **Item dimensions L x W x H:** 3.94 x 2.36 x 2.36 inches
- **Manufacturer:** RaceFace
- **Material:** Aluminum
- **Style:** Stems
- **Tensile Strength:** 31000 Pounds Per Square Inch
- **UPC:** 821973186832

## Images

![Race Face Atlas Mountain Bike Stem - Image 1](https://m.media-amazon.com/images/I/61-cDsZzHsL.jpg)
![Race Face Atlas Mountain Bike Stem - Image 2](https://m.media-amazon.com/images/I/510m4V5XTsL.jpg)
![Race Face Atlas Mountain Bike Stem - Image 3](https://m.media-amazon.com/images/I/51NPwYt3EYL.jpg)
![Race Face Atlas Mountain Bike Stem - Image 4](https://m.media-amazon.com/images/I/51p3rHDjxGL.jpg)
![Race Face Atlas Mountain Bike Stem - Image 5](https://m.media-amazon.com/images/I/41wkLvDEziL.jpg)

## Frequently Bought Together

- RaceFace Atlas Mountain Bike Stem
- RACE FACE HEADSET SPACER KIT WITH TOP CAP BLACK ALUMINUM
- Race Face Atlas Mountain Bike Handlebar (Black, 31.8-mm Clamp, 785-mm Wide, 1.25-Inch Rise)

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**Shop now:** [https://www.desertcart.com.ar/products/1839638-race-face-atlas-mountain-bike-stem](https://www.desertcart.com.ar/products/1839638-race-face-atlas-mountain-bike-stem)

---

*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-09-23*