The Smith Optics Mainline is their first foray into a DH certified full-face mountain bike helmet. The Mainline offers exceptional protection and features complete Koroyd coverage and the MIPS rotational system, with integrated internal air channels and open exhaust ports to maximize breathability and ventilation. It utilizes 21 optimized vents and the AirEvac ventilation system, which allows goggles and helmet to function in synergy, venting warm, moist air away from the goggle, and back away from the head. MSRP $300
Smith hasn’t released any details on the Mainline as yet, but the Rocky Mountain Enduro team was sharing photos of the helmet on Instagram, and a few retailers had information online.
It features the MIPS (Multidirectional Impact Protection) system which helps reduce rotational motion by absorbing and redirecting rotational energies and forces transferred to the brain from angled impacts to the head. The Koroyd material consists of thousands of co-polymer extruded tubes thermally welded together, which offers a structure with efficient and consistent energy absorption properties. Upon impact the cores crush in a completely controlled manner, decelerating the energy from the impact and reducing the final trauma levels, and it even works well during low-energy crashes.
It utilizes a lightweight Aerocore in-mold construction, has an adjustable visor, and is light/camera mount compatible. It includes three sets of uniquely sized cheek pads, two sets of uniquely sized crown liners, and two unique neck rolls to ensure a proper fit. The simple harness secures with a tried and true D-ring chin strap fastener.
Features
- With 21 optimized vents, the AirEvac ventilation system allows goggles and helmet to function as a system, venting warm, moist air away from the goggles—and away from the head
- Koroyd provides superior impact absorption, design flexibility, and ventilation when compared to materials traditionally used in helmet construction
- Utilizing crumple-zone cylinders that crush uniformly on impact, Koroyd manages energy more efficiently with less volume than traditional protection materials
- Rotational motion can cause brain injuries; with MIPS, a low-friction layer slides 10 to 15mm in all directions, reducing rotational motion to the brain during impact
- Unique pad kit includes 3 sets of sized cheek pads, 2 sets of sized crown liners and 2 neck rolls to ensure a proper fit̵all of which can easily be removed for cleaning
- Pads are made from Hybrid X-Static/XT2 for antibacterial performance
- Ride with confidence, knowing the Mainline is secured with a tried-and-true D-ring chin strap fastener
- Lightweight Aerocore in-mold construction
- Adjustable visor
- Camera- and light-mount compatible
- Downhill certified; ASTM F1952
- Ultimate goggle integration
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Sizes
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S: 20.1-21.7 inches
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M: 21.7-23.2 inches
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L: 23.2-24.4 inches
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