Mainline 2025

Give credit where credit is due. Thank your mom, your legs, and your gear for giving you the opportunity to land that rocky gap. Built to go big, go fast, or both, the Smith Mainline is the ultimate certified enduro bike helmet for downhill riding. Safety innovations like Koroyd™ and MIPS® provide energy-absorbing impact protection so you have the confidence to get aggressive on the trail. Whether you’re nailing the EWS in Whistler or agonizing over the final leg of your local enduro race, you need a breathable, lightweight helmet that pairs well with goggles and fits like a glove. The Mainline integrates with your goggles for efficient ventilation and fog-free vision. Multiple pad packages, including liners and neck rolls, let you customize the fit.