---
product_id: 658582955
title: "Troy Lee Designs A3 Uno MIPS Bicycle Helmet"
brand: "troy lee designs"
price: "£167.42"
currency: GBP
in_stock: true
reviews_count: 13
category: "Troy Lee Designs"
url: https://www.desertcart.co.uk/products/658582955-troy-lee-designs-a3-uno-mips-bicycle-helmet
store_origin: GB
region: United Kingdom
---

# 3-Way Magnajust visor precision MIPS tech for brain protection 23 vents for max airflow Troy Lee Designs A3 Uno MIPS Bicycle Helmet

**Brand:** troy lee designs
**Price:** £167.42
**Availability:** ✅ In Stock

## Summary

> 🧢 Ride smart, ride safe, ride with Troy Lee Designs.

## Quick Answers

- **What is this?** Troy Lee Designs A3 Uno MIPS Bicycle Helmet by troy lee designs
- **How much does it cost?** £167.42 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/658582955-troy-lee-designs-a3-uno-mips-bicycle-helmet)

## Best For

- troy lee designs enthusiasts

## Why This Product

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

## Key Features

- • **Race-Proven Legacy:** Crafted by Troy Lee Designs, trusted by the world’s fastest racers for 40 years.
- • **Style Meets Substance:** Striking SRAM Red finish that commands attention while offering premium protection.
- • **Breathe Easy, Ride Hard:** 23 strategically placed vents deliver superior airflow to keep you cool on every trail.
- • **Custom Fit, All Day Comfort:** 3-Way Magnajust visor and adjustable clasp ensure a personalized, glove-friendly fit.
- • **Unmatched Safety Innovation:** Industry-first dual-impact EPP & EPS layers with MIPS for cutting-edge brain protection.

## Overview

The Troy Lee Designs A3 Uno MIPS Helmet is a top-tier adult mountain bike helmet featuring advanced dual-impact protection with EPP and EPS foam combined with MIPS technology. It boasts 23 vents for maximum airflow, a 3-Way Magnajust visor for customizable fit, and an adjustable clasp designed for easy use even with gloves. Backed by 40 years of racing expertise, this helmet delivers unmatched comfort, safety, and style in a lightweight, breathable design.

## Description

desertcart.com : Troy Lee Designs A3 Adult Mountain Bike Trail All Mountain Helmet W/MIPS, SRAM Red, X-Small/Small : Sports & Outdoors

Review: Great helmet! - Buying my first helmet in a good while since we're getting into mountain biking. Some major improvements have been made in helmet tech over the years is what I'm finding! This helmet comes highly rated from Virginia Tech (they do impact and safety ratings that are highly regarded from what I can tell). Love the design and fitment. I have a small head so I got a small bit I did measure to make sure since I wasn't getting fitted at a store. The clasp took a second to get used to, but I love it and it can be used with gloves easily while still feeling secure. It came with several padding options and the visor is nice. Love the adjustable clasp at the back and adjustments on the side straps. Great looking helmet - light and breathable. Super comfortable. It's important to protect your brains y'all, buy this helmet!!
Review: Great quality, great fit, teens will wear! - My son worked to buy himself an electric dirt bike but needed a better helmet. As a nervous mom, I wanted to make sure that he had a good one BUT it also needed to pass the 'looks cool' test. I researched online and saw that this helmet was rated a 5 star by the Virginia Tech helmet ratings (which I guess is the expert). That rating made me feel really good. He loved it from the minute he opened it for Christmas. You can tell it is high quality and it has good padding. My son has a larger head so getting helmets to fit is not always easy. This helmet fits well, is comfortable, looks great and matches his bike. He is happy to wear it on the trails, which makes me happy!

## Features

- TOP OF THE LINE most comfortable helmet we've made to date w 3-Way Magnajust visor, comfort liner
- CUTTING EDGE SAFETY Tech with MIPS, industry first EPP (high speed), EPS (low speed) impacts
- Troy Lee Designs makes Moto and Bicycle products for consumers.
- 23 VENTS FOR MAXIMUM AIRFLOW- the most intake and exhaust vents of any half shell helmet we've made
- Troy Lee Designs: 40 years of racing for the World's Fastest Racers

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CTLQHQ8V |
| Age Range (Description) | Adult |
| Age Range Description | Adult |
| Brand | Troy Lee Designs |
| Brand Name | Troy Lee Designs |
| Color | SRAM Red |
| Customer Reviews | 4.5 out of 5 stars 294 Reviews |
| Inner Material | Expanded Polypropylene, Expanded Polystyrene, Mesh |
| Item Dimensions | 1 x 1 x 1 inches |
| Manufacturer | Troy Lee Designs |
| Manufacturer Part Number | 150486011 |
| Model Name | A3 Helmet W/MIPS |
| Model Number | 150486 |
| Recommended Uses For Product | Cycling |
| Size | X-Small-Small |
| UPC | 887202462962 |

## Product Details

- **Brand:** Troy Lee Designs
- **Color:** SRAM RED
- **Model Name:** A3
- **Size:** Medium-Large
- **Special Feature:** Lightweight, Ventilation, Visor

## Images

![Troy Lee Designs A3 Uno MIPS Bicycle Helmet - Image 1](https://m.media-amazon.com/images/I/61rMCqYRfFL.jpg)
![Troy Lee Designs A3 Uno MIPS Bicycle Helmet - Image 2](https://m.media-amazon.com/images/I/61GRV1wU-AL.jpg)
![Troy Lee Designs A3 Uno MIPS Bicycle Helmet - Image 3](https://m.media-amazon.com/images/I/61jHO47b6+L.jpg)
![Troy Lee Designs A3 Uno MIPS Bicycle Helmet - Image 4](https://m.media-amazon.com/images/I/61qfGaUBchL.jpg)

## Available Options

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

## Questions & Answers

**Q: What is Mips ?**
A: The Mips system is designed to provide added safety for helmets in many accidents. For certain impacts, the Mips system can reduce harmful rotational motion.

**Q: What is EPP?**
A: EPP (Expanded Polypropylene) is a closed cell foam used in helmets that can withstand multiple impacts.

**Q: What is EPS?**
A: EPS (Expanded Polystyrene) is a lightweight foam material used in helmets for various action sport activities.

**Q: Can I purchase helmet accessories and parts separately?**
A: Yes. We offer a full range of replacement parts, including visors, padding, and more.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great helmet!
*by C***K on December 10, 2024*

Buying my first helmet in a good while since we're getting into mountain biking. Some major improvements have been made in helmet tech over the years is what I'm finding! This helmet comes highly rated from Virginia Tech (they do impact and safety ratings that are highly regarded from what I can tell). Love the design and fitment. I have a small head so I got a small bit I did measure to make sure since I wasn't getting fitted at a store. The clasp took a second to get used to, but I love it and it can be used with gloves easily while still feeling secure. It came with several padding options and the visor is nice. Love the adjustable clasp at the back and adjustments on the side straps. Great looking helmet - light and breathable. Super comfortable. It's important to protect your brains y'all, buy this helmet!!

### ⭐⭐⭐⭐⭐ Great quality, great fit, teens will wear!
*by A***R on January 5, 2026*

My son worked to buy himself an electric dirt bike but needed a better helmet. As a nervous mom, I wanted to make sure that he had a good one BUT it also needed to pass the 'looks cool' test. I researched online and saw that this helmet was rated a 5 star by the Virginia Tech helmet ratings (which I guess is the expert). That rating made me feel really good. He loved it from the minute he opened it for Christmas. You can tell it is high quality and it has good padding. My son has a larger head so getting helmets to fit is not always easy. This helmet fits well, is comfortable, looks great and matches his bike. He is happy to wear it on the trails, which makes me happy!

### ⭐⭐⭐⭐⭐ New is better!
*by M***N on June 15, 2026*

Comfortable. I was concerned extra coverage would be warmer, but it’s not, it’s great. Newer design allows my glasses to fit without pushing on my ears, something that I felt with the older A2 model.

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**Shop now:** [https://www.desertcart.co.uk/products/658582955-troy-lee-designs-a3-uno-mips-bicycle-helmet](https://www.desertcart.co.uk/products/658582955-troy-lee-designs-a3-uno-mips-bicycle-helmet)

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-07-01*