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Bike Helmets
(126 products)Products (126)
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- BernWatts 2.0 Mips Winter Helmet with Compass Fit - Men's$84.73Save 50%compared to $170.00Helmet Style:Snow, Recreational CyclingWeight:0.77 lbsFeatured Tech:MipsREI OUTLET
- SmithNetwork MIPS High-Viz Bike Helmet$107.93Save 40%compared to $180.00Helmet Style:Road BikeWeight:0.66 lbsFeatured Tech:Mips
- SmithSession Mips Bike Helmet$101.73Save 40%compared to $170.00Helmet Style:Mountain BikeWeight:0.82 lbsFeatured Tech:MipsREI OUTLET
- SmithNetwork MIPS Bike HelmetTop Rated$101.93 - $170.00Helmet Style:Road BikeWeight:0.66 lbsFeatured Tech:Mips
- SmithExpress MIPS Cycling HelmetTop Rated$65.93Save 40%compared to $110.00Helmet Style:Recreational CyclingWeight:0.73 lbsFeatured Tech:Mips
- SmithSession Mips Bike Helmet$101.73 - $124.73Save 26% - 40%compared to $170.00Helmet Style:Mountain BikeWeight:0.82 lbsFeatured Tech:MipsREI OUTLET
- GiroSynthe Mips II Bike Helmet$118.73Save 40%compared to $200.00Helmet Style:Road BikeWeight:0.61 lbsFeatured Tech:MipsREI OUTLET
- SmithForefront 2 Mips Bike Helmet$148.73Save 40%compared to $250.00Helmet Style:Mountain BikeWeight:0.88 lbsFeatured Tech:MipsREI OUTLET
- SmithExpress Bike HelmetTop Rated$41.73 - $49.73Save 28% - 40%compared to $70.00Helmet Style:Recreational CyclingWeight:0.66 lbsREI OUTLET
- GiroManifest Spherical Mips Bike Helmet$154.73Save 40%compared to $260.00Helmet Style:Mountain BikeWeight:0.75 lbsFeatured Tech:MipsREI OUTLET
- SmithNetwork Mips Bike Helmet$101.73Save 40%compared to $170.00Helmet Style:Road BikeWeight:0.66 lbsFeatured Tech:MipsREI OUTLET
- FoxSpeedFrame Pro Blocked Bike Helmet$112.73Save 40%compared to $189.95Helmet Style:Mountain BikeWeight:0.78 lbsFeatured Tech:MipsREI OUTLET
- SmithForefront 2 MIPS Bike HelmetTop Rated$149.93Save 40%compared to $250.00Helmet Style:Mountain BikeWeight:0.88 lbsFeatured Tech:Mips
- TrekRally WaveCel HelmetTop Rated$95.83Save 40%compared to $160.00Helmet Style:Mountain BikeWeight:0.79 lbsFeatured Tech:WaveCel
- BontragerCharge WaveCel Bike Helmet$89.93Save 40%compared to $150.00Helmet Style:Recreational Cycling, Electric BikeWeight:0.86 to 0.94 lbsFeatured Tech:Blendr, WaveCel, Boa
- SmithForefront 2 Mips Bike Helmet$153.73Save 38%compared to $250.00Helmet Style:Mountain BikeWeight:0.88 lbsFeatured Tech:MipsREI OUTLET
- SmithSession MIPS Bike Helmet$109.73Save 35%compared to $170.00Helmet Style:Mountain BikeWeight:0.82 lbsFeatured Tech:MipsREI OUTLET
- CannondaleSidestreet Bike Helmet$74.73Save 35%compared to $115.00Helmet Style:Recreational CyclingWeight:0.79 lbsFeatured Tech:MipsREI OUTLET
- SmithRhythm MTB GogglesNew arrival$54.73Save 31%compared to $80.00REI OUTLET
- GiroCaden II Bike Helmet$55.73Save 30%compared to $80.00Helmet Style:Recreational CyclingWeight:0.73 lbsREI OUTLET
- FoxMainframe Trvrs Helmet$62.73Save 30%compared to $89.95Helmet Style:Mountain BikeWeight:0.93 lbsFeatured Tech:MipsREI OUTLET
- GiroSwitchblade Mips Bike Helmet$195.73Save 30%compared to $280.00Helmet Style:Full-faceWeight:2.15 lbsFeatured Tech:MipsREI OUTLET
- GiroInsurgent Spherical Mips Bike Helmet$244.73Save 30%compared to $350.00Helmet Style:Full-faceWeight:2.29 lbsFeatured Tech:MipsREI OUTLET
- GiroSyntax Mips Bike Helmet$90.73Save 30%compared to $130.00Helmet Style:Road BikeWeight:0.75 lbsFeatured Tech:MipsREI OUTLET
- GiroManifest Spherical Mips Bike Helmet$181.73Save 30%compared to $260.00Helmet Style:Mountain BikeWeight:0.75 lbsREI OUTLET
- GiroTyrant Spherical Mips Bike Helmet$111.73Save 30%compared to $160.00Helmet Style:Mountain BikeWeight:1.32 lbsFeatured Tech:MipsREI OUTLET
- GiroArtex Mips Bike Helmet$97.73Save 30%compared to $140.00Helmet Style:Mountain BikeWeight:0.75 lbsFeatured Tech:MipsREI OUTLET
- FoxSpeedframe Pro Fade Bike Helmet$132.73Save 30%compared to $189.95Helmet Style:Mountain BikeWeight:0.78 to 0.91 lbsFeatured Tech:MipsREI OUTLET
- FoxSpeedframe Mips Bike Helmet$97.93Save 30%compared to $139.95Helmet Style:Mountain BikeWeight:1.9 lbsFeatured Tech:Mips
- FoxSpeedFrame Pro Mips Bike Helmet$132.93 - $141.93Save 25% - 30%compared to $189.95Helmet Style:Mountain BikeWeight:0.84 lbsFeatured Tech:Mips
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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.