Mainline Helmet
Mainline Helmet
Mainline Helmet

Mainline Helmet

E007429RX5559

Regular price$310.00
/

Color
Size

California Region

  • San Rafael 2-4 days 7-10 days
  • Sausalito 2-4 days 7-10 days
  • Berkeley Available
  • Palo Alto 2-4 days 7-10 days
  • San Francisco 2-4 days 7-10 days
  • Sacramento 2-4 days 7-10 days
  • Los Gatos 2-4 days 7-10 days
  • Petaluma 2-4 days 7-10 days
  • Walnut Creek 2-4 days 7-10 days
  • San Jose Available
  • Pleasanton 2-4 days 7-10 days
  • Folsom 2-4 days 7-10 days
  • Roseville 2-4 days 7-10 days
  • Stanford Research Park 2-4 days 7-10 days
  • Distribution Center 2-4 days 7-10 days
  • Distribution Center Available

Colorado Region

  • Denver East Available
  • Denver Downtown Available
  • Highlands Ranch 2-4 days 7-10 days
  • Parker 2-4 days 7-10 days
  • Distribution Center 2-4 days 7-10 days

California Region

  • San Rafael 2-4 days 7-10 days
  • Sausalito 2-4 days 7-10 days
  • Berkeley 2-4 days 7-10 days
  • Palo Alto 2-4 days 7-10 days
  • San Francisco 2-4 days 7-10 days
  • Sacramento 2-4 days 7-10 days
  • Los Gatos 2-4 days 7-10 days
  • Petaluma 2-4 days 7-10 days
  • Walnut Creek 2-4 days 7-10 days
  • San Jose 2-4 days 7-10 days
  • Pleasanton 2-4 days 7-10 days
  • Folsom 2-4 days 7-10 days
  • Roseville 2-4 days 7-10 days
  • Stanford Research Park 2-4 days 7-10 days
  • Distribution Center 2-4 days 7-10 days
  • Distribution Center Available

Colorado Region

  • Denver East 2-4 days 7-10 days
  • Denver Downtown 2-4 days 7-10 days
  • Highlands Ranch 2-4 days 7-10 days
  • Parker 2-4 days 7-10 days
  • Distribution Center 2-4 days 7-10 days

California Region

  • San Rafael 2-4 days 7-10 days
  • Sausalito 2-4 days 7-10 days
  • Berkeley Available
  • Palo Alto 2-4 days 7-10 days
  • San Francisco 2-4 days 7-10 days
  • Sacramento 2-4 days 7-10 days
  • Los Gatos 2-4 days 7-10 days
  • Petaluma 2-4 days 7-10 days
  • Walnut Creek 2-4 days 7-10 days
  • San Jose 2-4 days 7-10 days
  • Pleasanton 2-4 days 7-10 days
  • Folsom 2-4 days 7-10 days
  • Roseville 2-4 days 7-10 days
  • Stanford Research Park 2-4 days 7-10 days
  • Distribution Center 2-4 days 7-10 days
  • Distribution Center 2-4 days 7-10 days

Colorado Region

  • Denver East 2-4 days 7-10 days
  • Denver Downtown 2-4 days 7-10 days
  • Highlands Ranch Available
  • Parker 2-4 days 7-10 days
  • Distribution Center 2-4 days 7-10 days

California Region

  • San Rafael Available
  • Sausalito Available
  • Berkeley Available
  • Palo Alto Available
  • San Francisco Available
  • Sacramento Available
  • Los Gatos Available
  • Petaluma 2-4 days 7-10 days
  • Walnut Creek Available
  • San Jose Available
  • Pleasanton Available
  • Folsom 2-4 days 7-10 days
  • Roseville Available
  • Stanford Research Park 2-4 days 7-10 days
  • Distribution Center 2-4 days 7-10 days
  • Distribution Center 2-4 days 7-10 days

Colorado Region

  • Denver East 2-4 days 7-10 days
  • Denver Downtown 2-4 days 7-10 days
  • Highlands Ranch 2-4 days 7-10 days
  • Parker 2-4 days 7-10 days
  • Distribution Center 2-4 days 7-10 days

California Region

  • San Rafael 2-4 days 7-10 days
  • Sausalito Available
  • Berkeley Available
  • Palo Alto Available
  • San Francisco Available
  • Sacramento Available
  • Los Gatos Available
  • Petaluma Available
  • Walnut Creek Available
  • San Jose Available
  • Pleasanton Available
  • Folsom Available
  • Roseville Available
  • Stanford Research Park 2-4 days 7-10 days
  • Distribution Center 2-4 days 7-10 days
  • Distribution Center Available

Colorado Region

  • Denver East 2-4 days 7-10 days
  • Denver Downtown 2-4 days 7-10 days
  • Highlands Ranch 2-4 days 7-10 days
  • Parker 2-4 days 7-10 days
  • Distribution Center 2-4 days 7-10 days

California Region

  • San Rafael 2-4 days 7-10 days
  • Sausalito 2-4 days 7-10 days
  • Berkeley 2-4 days 7-10 days
  • Palo Alto 2-4 days 7-10 days
  • San Francisco 2-4 days 7-10 days
  • Sacramento Available
  • Los Gatos 2-4 days 7-10 days
  • Petaluma 2-4 days 7-10 days
  • Walnut Creek 2-4 days 7-10 days
  • San Jose 2-4 days 7-10 days
  • Pleasanton 2-4 days 7-10 days
  • Folsom Available
  • Roseville 2-4 days 7-10 days
  • Stanford Research Park 2-4 days 7-10 days
  • Distribution Center 2-4 days 7-10 days
  • Distribution Center 2-4 days 7-10 days

Colorado Region

  • Denver East 2-4 days 7-10 days
  • Denver Downtown 2-4 days 7-10 days
  • Highlands Ranch 2-4 days 7-10 days
  • Parker 2-4 days 7-10 days
  • Distribution Center 2-4 days 7-10 days

Free shipping on all orders over $49. $9 shipping for orders under $49.

Cannondale, Santa Cruz, Cervelo, Gazelle, BMC, and *other bikes ship for FREE, but Gold Label Assembly will be added at checkout for only $79 (reg. $100) to cover the professional bike build and re-packaging by our certified technicians. It’s bike shop quality, direct to your door!

Some bikes not eligible for shipping due to manufacturer restrictions.

Shop with confidence! It's important to us that you are happy with your Mike’s Bikes purchase so we offer offer a 30-day return/exchange window for your unused gear and 14 days on all bikes. Our exchange and return process is fast and easy. If you choose to exchange for a different size or color, we will ship your product for free.

View Full Policy

Give credit where credit's due. Thank your mom, your legs, and your gear for giving you the opportunity to land that rocky gap. Made for going big, going fast, or both, the Smith Mainline is our pinnacle, downhill certified enduro bike helmet. Safety innovations like Koroyd™ and MIPS® provide energy-absorbing impact protection so you have the confidence to get aggressive on the trail. It doesn't matter if you're slaying the EWS in Whistler or suffering through the last stage 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 bike goggles for efficient venting and fog-free vision. Multiple pad sets including liners and neck-rolls let you customize the fit.

FEATURES:

  • Protection
    • Complete Koroyd® coverage for lightweight, energy-absorbing and ventilated impact protection
    • MIPS® Brain Protection System reduces rotational forces caused by angled impacts to the head
    • CPSC CE EN 1078 and ASTM F1952 downhill certified
  • Fit / Integration
    • 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

SPECS:

  • 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