The best bike helmets you can buy

Why you'll love it: The Bern FL1 Trail combines the styling of helmets five times its price with great venting and an adjustable fit for a performance that belies its incredible value.

Two-hundred-and-fifty bucks can seem like a lot to spend on something that is designed to break. While it is true that you only get one brain, and it is worth protecting, starting cycling can be expensive enough as it is. Luckily, all helmets approved for use in the US have to pass the same tests, meaning that while cheaper helmets might weigh more or offer less venting, they’ll protect you just as much as their higher-end brethren.

With the FL1 Trail, the compromises are pretty minimal. Bern uses the same in-mold 18 vent construction as its top of the line helmets, but save money by using a non-brand-name adjustment dial on the rear closure mechanism. The helmet offers a visor, to protect from rain, sun, and trailside vegetation. It doesn’t feel that much different in use to more expensive helmets thanks to its light weight of just 271 grams and plenty of venting.

Bicycling magazine loved the F1 trail with its four-level height adjustment for fit and snug-fitting chin strap and color options to suit every rider. The helmet did seem to sit rather high on the head of reviewers at Bike Rumor, which might be a concern for low-speed impacts.

The helmet does not offer MIPS (Multi-Directional Impact Protection System), either, but BERN offers an FL1 model with MIPS for $30 more. Some reviewers found the sizing ran a little small, but Amazon users note that Bern has great customer service if size is an issue.

Pros: Great value, highly vented and adjustable, looks and weight on par with top brands

Cons: Sits a little high on the head, non-MIPS, visor is not adjustable

Buy the FL1 Trail Helmet on Amazon for $69.99

Why you'll love it: Giro's Aether is a slimline helmet that doesn't compromise on breathability, aerodynamics, or safety, making it a great choice for the racer who wants to go fast uphill and down.

Giro has long been a name associated with the highest level of performance in bike racing. Its helmets have won bike races in just about every category, and the brand has innovated not only in performance but also safety.

Two of the biggest trends in cycle helmets recently have been aerodynamics and multiple impact protection (MIPS). Both have been driven by Giro but, until recently, both required compromises resulting in racers often owning several helmets. Aerodynamic helmets, such as Giro's first generation air attack, were fast on the flat but tended to be heavy and poorly vented and thus a poor choice for hilly days.

Giro Pioneered Multiple Impact Protection Systems in bicycle helmets in 2015, but in its previous generation of MIPS helmets, sometimes sizing was a little off and the MIPS liner tended to squeak annoyingly and catch on sunglasses or long hair.

The Aether is a no-compromises racing helmet. Instead of placing the MIPS layer by the riders' head, Giro has sandwiched in between EPS foam layers, resulting in a more comfortable and aerodynamic helmet. Eleven huge vents make the helmet virtually disappear on climbs.

Expert reviewers said that the Aether was "among the coolest and best ventilated helmets, at high and low speed, we have ever ridden." Of course, the big benefit of the Aether is one that nobody wants to test. Impact protection with the MIPS spherical system is better than ever before, and now the helmet's fit and ventilation are uncompromised meaning that, should the worst happen you'll always be the best protected.

Gone is the yellow MIPS liner of previous models. Instead, the new Spherical MIPS system is built into the helmet and provides more impact protection and less inconvenience. The adjustable Roc-Loc 5 fit system means that the helmet will retain the fit, which one expert described as "exceptionally comfortable, for all shapes and sizes of head.

Giro also claims that the helmet is slightly more aerodynamic than its current Synthe model, and weight is about the same. One biker did note that this integration of the MIPS system meant they had to size up from a medium to a large, and this has been my own experience as well. Giro provide a handy sizing guide that should help you pick the right helmet size for your head.

Pros: One of the safest helmet son the market, lightweight and aerodynamic, comes in a variety of colors to match your bike or kit

Cons: The Aether is expensive, but you only get one brain, this is more of a road style helmet and off-road riders will have to wait for mountain bike appropriate model

Buy the Giro Aether MIPS on Amazon for $325

Why you'll love it: The Stack uses a unique design to reduce in size by almost 50%, making it perfect for stashing in your bag if you aren’t riding.

Bikeshare bikes are everywhere — more than one million miles have been ridden on them in NYC already and many other large urban areas are following suit. Most people who ride bikeshare bikes do so without helmets, and it can be hard to carry around a full sized helmet on the off chance that you decide to pick up a bikeshare bike to ride to lunch. This is where the Stack comes in.

It’s as safe and comfortable as a regular helmet, but when collapsed it takes up just half the space in your bag. If you use bikeshare bikes regularly or as part of your commute, the Stack will quickly become something you never leave home without.

When in use, the Stack acts like any other bike helmet, complete with ventilation and an adjustable elastic fit strap. Just like every other helmet here, it has to pass a set of stringent tests that determine its ability to prevent brain injury in the event of a crash or fall.

The Stack locks in its expanded position dependably, it never collapsed on us during testing which was a worry we had before we got out hands on one. The hidden air vents and elastic strap make for a comfortable fit, and the helmet comes in two sizes and four colors, so there should be something for everyone.

The really great thing about the Stack is how it behaves when not in use. Instead of requiring a special tie down on the outside of your backpack or hanging awkwardly off your messenger bag all day, the stack collapses into itself and can be stashed in a bag, drawer or desk.

One expert tester loved that the Stack, which packs down to the size of a takeout container, allowed her to store it inside her bag rather than having it swinging on the outside at social engagements.

Travel blogger ThePointsGuy found the packability of the helmet so useful that he suggested it as a gift for citybreaks. It can be packed in a carry-on bag and used to safely explore a new city.

At only 330 grams, the Stack isn’t heavy, and it’s small enough to fit in almost messenger bag or backpack. If you use bikeshare systems or electric scooters on a regular basis or intend to borrow a bike while you travel, this is a fantastic alternative to riding helmetless and, at less than $80, a cheap way to stay safe as you make your way around town.

Pros: Collapses to a smaller size, portable, easy to travel with, protective design, easy to use, great for bikeshare fans

Cons: A bit pricey

Buy the CLOSCA Stack Packable helmet at Priority Bicycles for $79.99

Why you'll love it: The Lumos Kickstart fits and feels like a regular helmet, but its host of high-tech features make it a great pick for anyone who rides at night in the dark.

For half of the year, I ride home from work in the pitch black. I make every effort to light myself up like a Christmas tree with both flashing and steady rear and front lights as well as reflective clothing and even hi-viz socks. But it wasn't until I tried the Lumos Kickstart that I realized that drivers knowing where I was is only part of the safety equation. To be really safe, I also needed to let them know where I was going.

When it's too dark for drivers to see hand signals indicating a change in direction, the Lumos Kickstart uses an automatic rear warning light to signal braking and a handlebar mounted signal to indicate changes in direction. Just like a car, the Lumos gives you red brake lights and orange turn signals.

The Kickstart also includes white LED lights on the front and red LEDs on the rear, meaning that you are visible even when not braking or turning. When combined with a sensible outfit and bike lights, the Lumos really does feel like the safest way to get home in the dark and several drivers at stop lights have asked me where I got the helmet, I guess that means it achieved the goal of getting their attention.

The helmet is set up via a smartphone app, which Amazon reviewers found to be "easy" to use. It is charged using a proprietary magnetic charging cord. The charging system works well, as the above review confirms, but it does mean making sure you always have the right cable and we would love to see a more standard Micro USB charging standard — this reviewer shared our opinions. Luckily, Lumos sell extra cables so you can keep one at home and one at work.

The Lumos, isn't just a light system though. It also works as a helmet. One reviewer said it was "the most comfortable helmet I've owned" and an expert tester noted that it was "surprisingly comfortable" despite weighing much more than a standard helmet thanks to the lights and battery.

While the Kickstart might lack the adjustability of truly high-end road helmets, it's designed more with commutes in mind and isn't likely to see much use in 100-mile road races.

Overall, the Kickstart is not a replacement for lights, it is a great addition to the safety toolkit of any cycle commuter. If you're riding home in the dark, this helmet really stands out as a great choice for safety and visibility and even if you keep another helmet for fun weekend rides this will soon become your daily driver.

Pros: Highly visible and noticeable to drivers, wireless controls let you signal turns without taking your hands off the bars, easy set up and good fit

Cons: Proprietary charger, heavier than a standard helmet, lacks the adjustability of high end helmets

Buy the Lumos Kickstart helmet at REI for $180

The best bike racks for your car

High-quality bike racks install easily, make loading your bike an effortless task, and they keep your bike securely attached to your car.

While researching the best bike racks, we examined hundreds of expert and buyer reviews and ratings of dozens of brands. Our guide features racks that are user-friendly, can fit an array of bike types, and they keep your car from getting scratched up.

Here are the best bike racks you can buy:

• Best bike rack overall: Thule T2 Pro XT 2 Bike Rack
• Best roof bike rack: Yakima HighRoad Top Car Bike Rack
• Best trunk bike rack: Saris Bones 2-Bike Trunk Rack
• Best lightweight hitch bike rack: Kuat Racks Sherpa 2.0 Bike Rack
• Best bike rack under $100: Allen Sports Premier Trunk Mounted Bike Rack

The best bike locks you can buy

Whether you live out in the country or in a major metropolitan area, there is no bike lock system that will stop a well-equipped thief. However, there are a number of locks that will either slow down or completely discourage a criminal. We've rounded up the best bike locks you can buy.

The Kryptonite New York Fahgettaboudit Mini Bicycle U-Lock is our top overall bike lock, but the Kryptonite New York Standard Bicycle U-Lock, the UShake Bike Lock Cable, the Kryptonite Kryptolok Standard Bicycle U-Lock w/4-foot Flex Cable, and the Sigtuna Heavy Duty Bicycle U-Lock with Cable are also great.

The best bike light you can buy

High-quality bike lights are bright enough to guide the way wherever you may roam, will last you for hours of riding, and you can easily release the light to take it with you.

While researching the best bike lights, we examined thousands of expert and buyer reviews and ratings of dozens of models. Our guide features lights that have demonstrated their durability, user-friendliness, and usefulness in a variety of situations.

Here are our picks for the best bike lights you can buy:

• Best bike light overall: Cygolite Streak 450 Hotshot SL Bike Light Combo Set
• Best affordable bike light: TeamObsidian Bike Light Set
• Best strap-mounted bike light: Knog Blinder Mob USB Rechargeable Light
• Best high-end bike light: NiteRider Pro 1800 Race Light
• Best bike light featuring side lights: Light and Motion Urban 500 Headlight

The best bike fenders you can buy

High-quality bike fenders are easy to install, protect against all sorts of debris your tires may kick up, and don't rattle much while you're riding.

While researching the best bike fenders, we read through countless reviews and ratings from experts and buyers. Our guide features mudguards that will protect you and your bike frame from the elements, have an attractive appearance, and fit several types of bikes.

Here are the best bike fenders you can buy:

• Best bike fenders overall: Planet Bike Cascadia Bike Fenders
• Best rear mudguard: SKS X-Tra Dry Rear Mudguard
• Best affordable bike fender: Fifty-Fifty Mountain Bike Fender
• Best fender for road bikes: SKS Raceblade Long Bicycle Fender Set
• Best front bike fender: Topeak DeFender M1 Mountain Bike Fender