Smith Optics Mainline MIPS Bike Helmet
Best lightweight protection for dedicated enduro racers and downhill enthusiasts.
A robust, downhill-certified option for riders who demand maximum protection without the bulk. It balances high-impact safety tech with excellent airflow, ensuring comfort during long, intense enduro stages or high-speed descents.
$310.00
at
Cripple Creek Backcountry
More Mainline options
Who it's for
- Enduro racers seeking high protection without overheating on long transfers
- Riders who struggle to find a comfortable, secure full-face fit
- Aggressive mountain bikers prioritizing maximum safety on technical terrain
Who should skip it
- Budget-conscious cyclists looking for a more affordable entry-level option
- Riders who prefer the convenience of quick-release magnetic chin straps
- Cyclists with wider faces who find narrow helmet profiles uncomfortable
Performance breakdown
Impact Protection
Dual-layer safety tech provides elite defense against high-speed downhill impacts.
Ventilation Efficiency
Twenty-one vents keep airflow constant during grueling, high-intensity climbs.
Fit Customization
Multiple pad kits ensure a locked-in, personalized feel for various head shapes.
Goggle Integration
Seamless channel design eliminates fogging even during heavy exertion.
Weight Management
Lightweight construction minimizes neck fatigue on long, aggressive trail days.
Safety Certifications
Comprehensive compliance across four major standards ensures maximum rider confidence.
Key Specs
Weight
770 grams
Number of Vents
21
Safety Technology
MIPS and KOROYD
Safety Certification
CPSC, CE EN 1078, ASTM F1952, NTA-8776
Closure Type
D-ring
Visor Type
Adjustable
Removable Padding
Yes
Eyewear Compatible
Yes
Intended Use
Enduro, Downhill, E-Bike
Know before you buy
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Ask Metto anything about the Smith Optics Mainline MIPS Bike Helmet before you decide.
