Bike Helmets
(121 products)SmithSignal Mips Bike Helmet
$59.73Save 29%compared to  $85.00Members use code OUTGIFT24 for an extra 20% off at REI OutletHelmet Style:Road BikeWeight:0.66 lbsFeatured Tech:MipsREI OUTLET- Top Rated
SmithEngage Mips Bike Helmet
$77.93 - $130.00Helmet Style:Mountain BikeWeight:0.77 lbsFeatured Tech:Mips - Top Rated
SmithSignal MIPS Bike Helmet
$50.93 - $85.00Helmet Style:Road BikeWeight:0.66 lbsFeatured Tech:Mips - Top Rated
TrekSolstice Mips Bike Helmet
$70.00Helmet Style:Recreational CyclingWeight:0.74 to 0.83 lbsFeatured Tech:Mips - Top Rated
SmithPersist Mips Bike Helmet
$77.93 - $130.00Helmet Style:Road BikeWeight:0.66 lbsFeatured Tech:Mips - Top Rated
ThousandHeritage 2.0 Bike Helmet
$73.93 - $99.00Helmet Style:Skate / BMXWeight:0.97 to 1.15 lbs - Top Rated
TrekStarvos WaveCel Bike Helmet
$105.00Helmet Style:Road BikeWeight:0.66 to 0.85 lbsFeatured Tech:WaveCel - Top Rated
SmithSession MIPS Bike Helmet
$101.93 - $170.00Helmet Style:Mountain BikeWeight:0.82 lbsFeatured Tech:Mips - Top Rated
SmithConvoy MIPS Bike Helmet
$50.93 - $85.00Helmet Style:Mountain BikeWeight:0.66 lbsFeatured Tech:Mips - Top Rated
SmithExpress MIPS Cycling Helmet
$65.93Save 40%compared to  $110.00Helmet Style:Recreational CyclingWeight:0.73 lbsFeatured Tech:Mips GiroSource Mips Bike Helmet
$130.00Helmet Style:Mountain BikeWeight:0.71 to 0.88 lbsFeatured Tech:MipsSmithDispatch Mips E-Bike Helmet
$170.00Helmet Style:Electric BikeWeight:0.79 lbsFeatured Tech:Mips- Top Rated
GiroFixture Mips II Bike Helmet - Kids'
$75.00Helmet Style:Mountain BikeWeight:0.72 lbsFeatured Tech:Mips - Top Rated
GiroAgilis MIPS Bike Helmet
$100.00Helmet Style:Road BikeWeight:0.66 lbsFeatured Tech:Mips SmithMaze Bike Helmet
$59.73Save 29%compared to  $85.00Members use code OUTGIFT24 for an extra 20% off at REI OutletHelmet Style:Skate / BMXWeight:0.6 lbsREI OUTLETSmithConvoy Mips Bike Helmet
$59.73Save 29%compared to  $85.00Members use code OUTGIFT24 for an extra 20% off at REI OutletHelmet Style:Mountain BikeWeight:0.66 lbsFeatured Tech:MipsREI OUTLET- Top Rated
SmithExpress Bike Helmet
$49.73Save 28%compared to  $70.00Members use code OUTGIFT24 for an extra 20% off at REI OutletHelmet Style:Recreational CyclingWeight:0.66 lbsREI OUTLET ThousandChapter 2 Mips Bike Helmet
$145.00Helmet Style:Recreational CyclingWeight:0.79 to 0.91 lbsFeatured Tech:Mips- Top Rated
SmithWilder Jr. Mips Bike Helmet - Kids'
$44.93 - $75.00Helmet Style:Mountain BikeWeight:0.6 lbsFeatured Tech:Mips BontragerCharge WaveCel Bike Helmet
$111.93Save 25%compared to  $150.00Helmet Style:Recreational Cycling, Electric BikeWeight:0.86 to 1.1 lbsFeatured Tech:Blendr, WaveCel, BoaFoxFlight Bike Helmet
$34.73Save 42%compared to  $59.95Members use code OUTGIFT24 for an extra 20% off at REI OutletHelmet Style:Recreational CyclingWeight:0.86 to 0.93 lbsREI OUTLET- Top Rated
GiroFixture Mips II Bike Helmet
$75.00Helmet Style:Mountain BikeWeight:0.73 lbsFeatured Tech:Mips SmithExpress Mips Cycling Helmet
$79.73Save 27%compared to  $110.00Members use code OUTGIFT24 for an extra 20% off at REI OutletHelmet Style:Recreational CyclingWeight:0.73 lbsFeatured Tech:MipsREI OUTLET- New arrival
GiroMerit Spherical Mips Bike Helmet
$219.95Helmet Style:Mountain BikeWeight:0.79 lbsFeatured Tech:Mips SmithForefront 2 Mips Bike Helmet
$179.73Save 28%compared to  $250.00Members use code OUTGIFT24 for an extra 20% off at REI OutletHelmet Style:Mountain BikeWeight:0.88 lbsFeatured Tech:MipsREI OUTLETGiroEscape Mips Bike Helmet
$130.00Helmet Style:Recreational CyclingWeight:1.08 lbsFeatured Tech:MipsLazerVerde KinetiCore Bike Helmet
$100.00Helmet Style:Recreational CyclingWeight:0.77 lbsFeatured Tech:KinetiCoreCannondaleQuick Bike Helmet
$51.93Save 25%compared to  $70.00Helmet Style:Recreational CyclingWeight:0.72 lbs- Top Rated
GiroRadix MIPS Bike Helmet
$74.93 - $100.00Helmet Style:Mountain BikeWeight:0.7 lbsFeatured Tech:Mips - Top Rated
TrekRally WaveCel Helmet
$160.00Helmet Style:Mountain BikeWeight:0.79 to 0.96 lbsFeatured Tech:WaveCel
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Bike Helmets
Bike helmets are pieces of safety equipment designed to protect your head in the event of a fall or crash. They consist of an outer shell and interior protective liner made of polystyrene foam to absorb impacts. Manufacturers have created a suite of technologies to improve safety like MIPS, designed to dampen rotational trauma.
Types of Bike Helmets
You'll want to choose the type of helmet that suits your style of riding:
- Road bike helmets are built to be lightweight, aerodynamic and ventilate to reduce sweat.
- Mountain bike helmets offer more coverage and come with an array of features like face protection and visors.
- Recreational helmets provide basic protection for casual riders.
- Kids' bike helmets are built for smaller heads.
If you're concerned about bike safety, also see our selection of bike lights, reflectors and mirrors.
More Considerations
Look for some important features as you pick your helmet:
- Ventilation: More vents increase wind flow, cooling you down.
- Visors: Some helmets have a sun visor built in to keep your eyes shaded.
- Face protection: Mountain bike helmets often have full face protection and a wraparound chin bar.
Bike Helmet Fit
Helmets should fit snuggly but not be uncomfortable. To get the right fit, first adjust the wheel or strap in the back. Then, buckle and tighten the chin strap. To test the fit, open your mouth wide. The helmet should press against the top of your head.
When to Replace your Helmet
Bike helmets are designed to absorb one impact. If you're been in any type of accident, it's best to get a new helmet even if it looks OK. Crash-free helmets should be replaced after five years as UV, weather and age can cause them to degrade.
Why Shop at REI
REI Co-op offers a 100% satisfaction guarantee. We carry helmets from top brands like Giro, Smith and Bern.