
Product Description
The pinnacle helmet in Smith's mountain bike collection is the all new, DH certified, Mainline. Featuring complete Koroyd® coverage and the MIPS® rotational system, the Mainline provides exceptional protection while combining internal air channels and open exhaust ports to maximize breathability. As goggle fit and ventilation are crucial for grueling days, the AirEvac™ system relieves hot air that builds up on your goggles, to prevent fogging. Included with the Mainline are three sets of uniquely sized cheekpads, two sets of uniquely sized crown liners, and two unique neck rolls to ensure a proper fit; all components can easily be removed for cleaning. Ride with confidence knowing the Mainline is secured with a tried and true D-ring chin strap fastener.
- Complete KOROYD® coverage for lightweight, energy-absorbing and ventilated impact
- Mips® Brain Protection System reduces rotational forces caused by angled impacts to the head
- 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
- Designed for ultimate integration with Smith performance goggles for maximum comfort, venting and storage convenience
- AirEvac ventilation system integrates with Smith goggles for fog-free lenses
- Three washable cheek pad kits, two crown liners and two neck rolls let you fine-tune the fit
- D-ring chin strap fastener for a snug fit
- 21 fixed vents for consistent airflow
- Adjustable visor
- Hybrid X-STATIC® / Ionic+® anti-bacterial performance lining for odor resistance
- Weight (Size M, Mips®): 27 oz / 770 g
Availability & Sizing
Product Details
Price History
Historical Data
Last 1 days of price history
| Date | Low Price | High Price | Average Price | Vendors |
|---|---|---|---|---|
| May 8, 2026 | $350.00 | $350.00 | $350.00 | 1 |
Price Statistics
Description
The pinnacle helmet in Smith's mountain bike collection is the all new, DH certified, Mainline. Featuring complete Koroyd® coverage and the MIPS® rotational system, the Mainline provides exceptional protection while combining internal air channels and open exhaust ports to maximize breathability. As goggle fit and ventilation are crucial for grueling days, the AirEvac™ system relieves hot air that builds up on your goggles, to prevent fogging. Included with the Mainline are three sets of uniquely sized cheekpads, two sets of uniquely sized crown liners, and two unique neck rolls to ensure a proper fit; all components can easily be removed for cleaning. Ride with confidence knowing the Mainline is secured with a tried and true D-ring chin strap fastener. Complete KOROYD® coverage for lightweight, energy-absorbing and ventilated impact Mips® Brain Protection System reduces rotational forces caused by angled impacts to the head 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 Designed for ultimate integration with Smith performance goggles for maximum comfort, venting and storage convenience AirEvac ventilation system integrates with Smith goggles for fog-free lenses Three washable cheek pad kits, two crown liners and two neck rolls let you fine-tune the fit D-ring chin strap fastener for a snug fit 21 fixed vents for consistent airflow Adjustable visor Hybrid X-STATIC® / Ionic+® anti-bacterial performance lining for odor resistance Weight (Size M, Mips®): 27 oz / 770 g
Additional Info
Vendor Comparison (1 stores)
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| Vendor | Price | Stock | Last Updated | Action |
|---|---|---|---|---|
Sports Basement Best Price | $350.00 | Out of Stock | 5/8/2026 | View Product → |
Available Sizes & Variants (18)
| Variant | Size | Color | Price | Status | Stores | Buy |
|---|---|---|---|---|---|---|
Matte Black / S | S | Matte Black | $350.00 | In Stock | 1 store | Buy |
Matte Black / M | M | Matte Black | $350.00 | In Stock | 1 store | Buy |
Matte Black / L | L | Matte Black | $350.00 | In Stock | 1 store | Buy |
Matte Forest / S | S | Matte Forest | $350.00 | Out of Stock | 1 store | — |
Matte Forest / M | M | Matte Forest | $350.00 | Out of Stock | 1 store | — |
Matte Forest / L | L | Matte Forest | $350.00 | Out of Stock | 1 store | — |
AC Rocky Mountain Enduro / S | S | AC Rocky Mountain Enduro | $350.00 | Out of Stock | 1 store | — |
AC Rocky Mountain Enduro / M | M | AC Rocky Mountain Enduro | $350.00 | Out of Stock | 1 store | — |
AC Rocky Mountain Enduro / L | L | AC Rocky Mountain Enduro | $350.00 | Out of Stock | 1 store | — |
Matte Cinder Haze / S | S | Matte Cinder Haze | $350.00 | Out of Stock | 1 store | — |
Matte Cinder Haze / M | M | Matte Cinder Haze | $350.00 | Out of Stock | 1 store | — |
Matte Cinder Haze / L | L | Matte Cinder Haze | $350.00 | Out of Stock | 1 store | — |
AC Iago Garay / S | S | AC Iago Garay | $350.00 | Out of Stock | 1 store | — |
AC Iago Garay / M | M | AC Iago Garay | $350.00 | Out of Stock | 1 store | — |
AC Iago Garay / L | L | AC Iago Garay | $350.00 | Out of Stock | 1 store | — |
Matte Sage/Red Rock / S | S | Matte Sage/Red Rock | $350.00 | Out of Stock | 1 store | — |
Matte Sage/Red Rock / M | M | Matte Sage/Red Rock | $350.00 | Out of Stock | 1 store | — |
Matte Sage/Red Rock / L | L | Matte Sage/Red Rock | $350.00 | Out of Stock | 1 store | — |





