Bike Helmets
(131 products)- SmithConvoy MIPS Bike HelmetTop Rated$85.00Helmet Style:Mountain BikeWeight:0.66 lbsFeatured Tech:Mips
- SmithSignal MIPS Bike HelmetTop Rated$85.00Helmet Style:Road BikeWeight:0.66 lbsFeatured Tech:Mips
- Sale Ends Jul 7CannondaleJunction Bike HelmetTop Rated$47.49Save 50%compared to  $95.00Helmet Style:Road BikeWeight:0.61 lbsFeatured Tech:Mips
- ThousandHeritage 2.0 Bike HelmetTop Rated$73.93 - $99.00Helmet Style:Skate / BMXWeight:0.97 to 1.15 lbs
- Sale Ends Jul 7CannondaleTrail Bike Helmet$24.99Save 50%compared to  $50.00Helmet Style:Mountain BikeWeight:0.66 lbs
- GiroFixture Mips II Bike Helmet$84.95Helmet Style:Mountain BikeWeight:0.73 lbsFeatured Tech:Mips
- Sale Ends Jul 7GiroMontaro Mips II Bike Helmet$119.89Save 25%compared to  $159.95Helmet Style:Mountain BikeWeight:0.82 lbsFeatured Tech:Mips
- TrekStarvos WaveCel Bike HelmetTop Rated$115.00Helmet Style:Road BikeWeight:0.66 to 0.85 lbsFeatured Tech:WaveCel
- TrekSolstice Mips Bike HelmetTop Rated$75.00Helmet Style:Recreational CyclingWeight:0.74 to 0.83 lbsFeatured Tech:Mips
- SmithEngage Mips Bike HelmetTop Rated$130.00Helmet Style:Mountain BikeWeight:0.77 lbsFeatured Tech:Mips
- SmithMaze Bike Helmet$50.73Save 40%compared to  $85.00Helmet Style:Skate / BMXWeight:0.6 lbsREI OUTLET
- GiroAgilis MIPS Bike HelmetTop Rated$119.95Helmet Style:Road BikeWeight:0.66 lbsFeatured Tech:Mips
- GiroRadix MIPS Bike HelmetTop Rated$74.93 - $119.95Helmet Style:Mountain BikeWeight:0.7 lbsFeatured Tech:Mips
- Sale Ends Jul 7CannondaleQuick Bike Helmet$34.99Save 50%compared to  $70.00Helmet Style:Recreational CyclingWeight:0.72 lbs
- SmithPersist Mips Bike HelmetTop Rated$130.00Helmet Style:Road BikeWeight:0.66 lbsFeatured Tech:Mips
- SmithPersist Mips Bike Helmet$80.73Save 37%compared to  $130.00Helmet Style:Road BikeWeight:0.66 lbsFeatured Tech:MipsREI OUTLET
- FoxSpeedFrame Mips Bike Helmet$109.95 - $119.95Helmet Style:Mountain BikeWeight:0.82 to 0.97 lbsFeatured Tech:Mips
- SmithSession Mips Bike Helmet$101.73Save 40%compared to  $170.00Helmet Style:Mountain BikeWeight:0.82 lbsFeatured Tech:MipsREI OUTLET
- TrekRally WaveCel Bike Helmet$175.00Helmet Style:Mountain BikeWeight:0.8 to 0.94 lbsFeatured Tech:Blendr, WaveCel
- GiroRegister Mips II Bike Helmet$84.95Helmet Style:Recreational CyclingWeight:0.73 lbsFeatured Tech:Mips
- GiroFixture Mips II Bike Helmet - Kids'Top Rated$84.95Helmet Style:Mountain BikeWeight:0.72 lbsFeatured Tech:Mips
- SmithForefront 2 Mips Bike Helmet$153.73Save 38%compared to  $250.00Helmet Style:Mountain BikeWeight:0.88 lbsFeatured Tech:MipsREI OUTLET
- FENDSuper + Lights Foldable Bike HelmetTop Rated$95.93 - $129.00Helmet Style:Recreational CyclingWeight:1.06 to 1.08 lbs
- CannondaleSidestreet Bike Helmet$74.73Save 35%compared to  $115.00Helmet Style:Recreational CyclingWeight:0.79 lbsFeatured Tech:MipsREI OUTLET
- GiroCaden II Bike Helmet$55.73Save 30%compared to  $80.00Helmet Style:Recreational CyclingWeight:0.73 lbsREI OUTLET
- SmithNetwork MIPS High-Viz Bike Helmet$107.93Save 40%compared to  $180.00Helmet Style:Road BikeWeight:0.66 lbsFeatured Tech:Mips
- Sale Ends Jul 7CannondaleRyker Adult Bike Helmet$39.99Save 50%compared to  $80.00Helmet Style:Mountain BikeWeight:0.71 to 0.73 lbs
- SmithExpress MIPS Cycling HelmetTop Rated$65.93Save 40%compared to  $110.00Helmet Style:Recreational CyclingWeight:0.73 lbsFeatured Tech:Mips
- SmithTransit Mips Bike Helmet$95.00Helmet Style:Recreational CyclingWeight:0.68 lbsFeatured Tech:Mips
- ThousandChapter Mips Bike Helmet$145.00Helmet Style:Recreational CyclingWeight:0.79 to 0.91 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.