---
product_id: 215245204
title: "SMITH Mainline MTB Cycling Helmet – Downhill Certified Adult Enduro Mountain Bike Helmet with Koroyd + MIPS Technology – Lightweight Impact Protection for Men & Women – Matte Black, Medium"
brand: "smith"
price: "€ 720.88"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.hr/products/215245204-smith-mainline-mtb-cycling-helmet-downhill-certified-adult-enduro-mountain
store_origin: HR
region: Croatia
---

# MIPS multi-directional impact protection 21 fixed vents for airflow Koroyd energy-absorbing core SMITH Mainline MTB Cycling Helmet – Downhill Certified Adult Enduro Mountain Bike Helmet with Koroyd + MIPS Technology – Lightweight Impact Protection for Men & Women – Matte Black, Medium

**Brand:** smith
**Price:** € 720.88
**Availability:** ✅ In Stock

## Summary

> 🚵‍♂️ Ride Bold, Ride Smart – The Smith Mainline Has Your Back!

## Quick Answers

- **What is this?** SMITH Mainline MTB Cycling Helmet – Downhill Certified Adult Enduro Mountain Bike Helmet with Koroyd + MIPS Technology – Lightweight Impact Protection for Men & Women – Matte Black, Medium by smith
- **How much does it cost?** € 720.88 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/215245204-smith-mainline-mtb-cycling-helmet-downhill-certified-adult-enduro-mountain)

## Best For

- smith enthusiasts

## Why This Product

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

## Key Features

- • **Stay Frosty:** 21 strategically placed vents ensure constant airflow, banishing heat and fog for crystal-clear vision.
- • **Smart Safety Tech:** MIPS system reduces rotational forces, keeping your brain safer on every aggressive turn.
- • **Trail-Ready Armor:** Koroyd coverage delivers ultra-lightweight, ventilated impact absorption for fearless downhill rides.
- • **Custom Comfort Fit:** Multiple washable padding sets and adjustable visor let you dial in your perfect ride feel.
- • **Certified Confidence:** Meets top safety standards (CPSC, CE EN 1078, ASTM F1952) so you can push limits with peace of mind.

## Overview

The Smith Mainline is a downhill-certified mountain bike helmet featuring Koroyd technology for lightweight, ventilated impact protection and MIPS for advanced brain safety. With 21 vents, customizable padding, and an adjustable visor, it offers superior comfort and airflow. Certified to multiple global safety standards, this helmet is engineered for aggressive trail riders seeking top-tier protection and performance.

## Description

SMITH Mainline MTB Cycling Helmet – Downhill Certified Adult Enduro Mountain Bike Helmet with Koroyd + MIPS Technology – Lightweight Impact Protection for Men & Women – Matte Black, Medium

## Features

- Our Pinnacle, Downhill-Certified Helmet: Made for going big, going fast, or both, the Smith Mainline gives you the confidence to get aggressive on the trail, whether you're slaying the EWS in Whistler or suffering through the last stage of your local enduro race
- Your Protection at its Core: Our Mainline helmet features complete Koroyd coverage for lightweight, energy-absorbing & ventilated protection, MIPS Safety Protection System. Complies with U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older as well as CE EN 1078, NTA8776 E-Bike and ASTM F1952 Downhill
- Stay Cool & Eliminate Foggy Lenses: With 21 fixed vents for consistent airflow, hybrid X-Static/Ionic+ lining for sweat-activated odor control and lightweight, low-bulk single-layer webbing, you’ll stay cool and your glasses or goggles will stay clear
- Includes Multiple Padding Sets for a Comfortable Fit: Includes 3 washable cheek pad kits, 2 crown liners + 2 neck rolls to let you fine tune the fit; the visor adjusts into three positions
- Born on the Mountain, Built from Innovation: Smith is a performance eyewear and helmet brand for those inspired to pursue new and deeper connections with the outdoors; we’ve been outfitting consumers with the confidence to experience more since 1965

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | SMITH |
| Color | Matte Black |
| Age Range (Description) | Adult |
| Size | Medium |
| Special Feature | Lightweight |
| Model Name | E007429RX |
| Outer Material | Polycarbonate (PC) |
| Recommended Uses For Product | Cycling |
| Inner Material | Expanded Polystyrene |
| Item Weight | 3.2 Pounds |
| Style | hybrid |
| UPC | 716736216867 |
| Item Package Dimensions L x W x H | 14.4 x 12.3 x 9.4 inches |
| Package Weight | 1.5 Kilograms |
| Brand Name | SMITH |
| Material | other |
| Suggested Users | unisex-adult |
| Number of Items | 1 |
| Manufacturer | Smith |
| Part Number | E007429RX5559 |
| Included Components | 1 item |
| Sport Type | Cycling |

## Product Details

- **Brand:** SMITH
- **Color:** Matte Black
- **Age Range (Description):** Adult
- **Size:** Medium
- **Special Feature:** Lightweight

## Images

![SMITH Mainline MTB Cycling Helmet – Downhill Certified Adult Enduro Mountain Bike Helmet with Koroyd + MIPS Technology – Lightweight Impact Protection for Men & Women – Matte Black, Medium - Image 1](https://m.media-amazon.com/images/I/711azTnUpgL.jpg)
![SMITH Mainline MTB Cycling Helmet – Downhill Certified Adult Enduro Mountain Bike Helmet with Koroyd + MIPS Technology – Lightweight Impact Protection for Men & Women – Matte Black, Medium - Image 2](https://m.media-amazon.com/images/I/61zYoHdggOL.jpg)
![SMITH Mainline MTB Cycling Helmet – Downhill Certified Adult Enduro Mountain Bike Helmet with Koroyd + MIPS Technology – Lightweight Impact Protection for Men & Women – Matte Black, Medium - Image 3](https://m.media-amazon.com/images/I/61IELkcSDOL.jpg)
![SMITH Mainline MTB Cycling Helmet – Downhill Certified Adult Enduro Mountain Bike Helmet with Koroyd + MIPS Technology – Lightweight Impact Protection for Men & Women – Matte Black, Medium - Image 4](https://m.media-amazon.com/images/I/715+2dxFWgL.jpg)
![SMITH Mainline MTB Cycling Helmet – Downhill Certified Adult Enduro Mountain Bike Helmet with Koroyd + MIPS Technology – Lightweight Impact Protection for Men & Women – Matte Black, Medium - Image 5](https://m.media-amazon.com/images/I/71Hi6tXMtfL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great helmet!
*by W***R on May 28, 2025*

Awesome helmet, great fit and air flow, bought for my son and he loves it.

### ⭐⭐⭐⭐⭐ Ligero
*by S***A on April 29, 2025*

Ligero y cómodo, y se ve cool

### ⭐⭐⭐⭐⭐ Great buy, super lightweight.
*by G***Z on March 24, 2025*

I love this helmet. It is so much lighter than any helmet I’ve raced Bmx with. it is not the strongest thing when it comes to taking a crash as it broke last weekend in a big slam. But it took the impact as opposed to me so I’d say it is great. I would recommend it.

## Frequently Bought Together

- Smith Mainline Cycling Helmet – Downhill Adult Mountain Bike Helmet + Koroyd Coverage + MIPS Technology for Men & Women - Adjustable Visor
- Fox Racing Launch D3O Mountain Bike Elbow Guards
- Fox Racing Launch D3O Mountain Bike Knee Guard, Large

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**Shop now:** [https://www.desertcart.hr/products/215245204-smith-mainline-mtb-cycling-helmet-downhill-certified-adult-enduro-mountain](https://www.desertcart.hr/products/215245204-smith-mainline-mtb-cycling-helmet-downhill-certified-adult-enduro-mountain)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-01-22*