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Explore our collection of lightweight mountain bike helmets designed for optimal protection and comfort on the trails. Engineered with advanced materials, these helmets provide superior ventilation and a secure fit, ensuring you stay cool and safe during your rides. The streamlined designs minimize bulk while maximizing safety features, making them perfect for both casual riders and serious enthusiasts. With adjustable straps and removable padding, you can customize your fit for all-day comfort. Gear up for your next adventure with a helmet that combines style, safety, and performance.
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$69.99
It fits well, is super lightweight and comfortable, and the Roc- Loc fit system allows a perfect fit. ... all- purpose youth helmet versatile design for trail, road or urban use lightweight shape with excellent ventilation reflective decals for increased visibility...
5
RyMN
I purchased this a month ago for my 5yr old and not one complaint yet. She loves it and wears it all the time.
5
Jammy212
I purchased this month for my grandson. So far, so good. He ’s 9 and it ’s good fit.
5
Bubba515
I bought this a month ago and it matches the bike perfectly
5
Lola and friends
Seems to adjust naturally to my daughter ’s head while still offering secure coverage. And she acts like she ’s not wearing anything. We ’ re happy with the purchase!
5
Jomide33
Great helmet and great colors. Love that it has MIPS
$49.99
WAS: $64.99*
Comfortable which is a bonus and its lightweight. ... it features the roc loc® sport fit system for an easy and versatile fit, and an in- mold polycarbonate shell with an eps liner that keeps the helmet lightweight but
5
sweetiestar
good purchase, lightweight but sturdy bike helmet!
5
sgmulletoff
Bought for kids who outgrew youth helmets, perfect helmet for them
5
ajstack9
Great Helmet for the price. It's lightweight and fits like a glove.
5
Consumer123454321
The design is light and breathable, not making my son's head hot and sweaty. The comfort and adjustable fitting is great. I recommend this to anyone, youth, as that's what we had.
5
LKJackson
very happy with the helmet- it fits my 15 yo perfect
$119.95
Super comfortable. ... equipped with mips®, the multi- directional impact protection system, so you not only stay cool but stay safe with extra protection and durability integrated mips® reduces rotational forces while enhancing comfort and fit polycarbonate hardbody™ lower shell extends coverage...
5
My2cents
[ Got this helmet for my husband to keep his noggin safe while riding his bike. The helmet fits him perfectly, which means he will actually wear it!
5
Rando76
[ Super comfortable. Fits my head great. So if you have a similar head, go get you one! This last sentence it to make the review long enough..
$42.99
knob dial for a snug fit removable visor shields the sun and provides better visibility interior padding wicks away sweat and is removable for easy cleaning complies with the u.s. cpsc safety standard for bicycle helmets for persons older than age 5 one size: 21. 25- 24
5
Jazy jay
My wife and I enjoy biking both solo and together. We usually go slow and enjoy the scenery. Two summers ago my wife said her sister who is a physical therapist started wearing a helmet after working with patients who had been injured in accidents and my wife started considering a helmet. A few months ago my wife bought a retrospect rowan helmet She wears it on almost every ride. A few days ago i took a ride and she offered it to me to try and i must say i do feel Safer with it on.
$54.95
the giro® adult quarter™ bike helmet is extremely lightweight and is designed to give you full coverage and protection when you venture out on the dirt trails or practicing on dirt
5
MiGr
Good quality for a decent price. Fits well and feels lightweight.
5
SamInTheSouth
My son has a big noggin so we have to get adult sizes for him. This was great because it was simple and had a “ cool ” look to it, not like most kid helmets. We went with matte black.
5
OG84
Love the flat black.. fits well and not too tight. Would definitely buy again..
5
Austy
I have a giant head and it is big enough to encase my humongous melon head so I ’ m a huge fan.
5
anyyBritt
Just bought this helmet and absolutely loooove the way it fits! 10/10:)
$189.99
designed for mountain biking multi- directional impact protection system reduces rotational forces from certain impacts and offers more protection float fit race™ is a lightweight system and has an easy to use turn dial that provides a broad range of vertical adjustments and padded...
5
Will
[ 2nd time buying. Great helmet. Low profile so doesn ’ t look like you have a garbage can on your head. Very comfortable. Only issue I took the inner liner out to wash and broke the mips plastic holding tabs. They don ’ t service them so I had to buy a new helmet. Keeping my old one for spare tabs in case it happens again. Also huge plus they sell replacement liners so you don ’ t have to throw it out when it gets nasty from sweat. Overall favorite helmet I ’ ve owned so far
5
RO RO
[ The helmet is super comfortable, sleek, and safe. I HIGHLY recommend buying it! I feel like the helmet I super light also which is nice given how durable it is.
5
Kody
[ Really the best thing you can say about a helmet is that you forget you ’ re wearing it and this one fits the bill. Ventilation is great, adjustable fit is fantastic and the aesthetic is pretty snazzy as well. Would definitely recommend!
$350.00
These are so lightweight and comfortable. ... Would still recommend it to anyone looking for a lightweight downhill helmet. ... evac™ ventilation system integrates with smith® goggles and eyewear for fog- free vision hybrid x- static®/ ionic+® antimicrobial lining...
5
Johnny
I have been wearing one of these helmets for about a year. It is comfortable, well vented and light. After crashing at a bike park and landing face first on a rock I can also confidently say that it offers great protection also. I broke the helmet, but walked away with only a small cut on my face. I also bought the same helmet as a replacement. If you 're considering buying a mainline, get one.
5
Conor
Great product. Don ’ t normally bother writing reviews but just went over the bars and landed on what would have been my face if it hadn ’ t been for this helmet. Body pretty banged up but not a scratch on my face/head
5
Bryan
Great fitting, great looking, confidence booster. I have n't taken a fall with the Mainline, but feel that it will keep me safe if that day comes.
5
Tyler
Saved my wife ’s face on a fall. This helmet did its job well and bought another one.
5
Andrew
I use this helmet for work and it ’s making wearing a full face in this heat bearable. Love the Matte Black look and the vents to keeps cool. The MIPS is great, but can sounds a little creaky when coming down rough stuff. Not very distracting though. Would still recommend it to anyone looking for a lightweight downhill helmet.
$187.50
WAS: $250.00*
mountain bike helmet designed for optimal comfort and protection mips® brain protection system reduces rotational forces caused by angled impacts to the head for added protection complete koroyd® coverage for lightweight, energy- absorbing and ventilated impact protection
5
Michael
Crash tested into asphalt, could still remember my birthday as well as America ’s and my wife ’s( which is not always a given. The fit system is phenomenal and the flip up visor is wildly under rated. Comfy, breathable and safe, buying the exact same one to replace it.
5
Ron S.
Easy to fit and comfortable. In addition not like other helmets I had in the past, it gives protection again the sun while maintaining ventilation.
5
Grant K.
Great fit for me. Comfortable. Good coverage. I like the visor and how mobile it is and how it holds its position.
5
there
I enjoy the look and the fit with the MIPS feature. it functions nicely
5
MTB2097
[ This is my 2nd Forefront 2 MIPS helmet. Fits my head. Looks great. Many color options, but I buy what ’s on sale. I use it for MTB, fat biking, and gravel.
$63.75
WAS: $85.00*
I use it while riding my step- through, foldable 2023 AiPas A2 Elite e- bike counting on the same lightweight fit, comfort and airy experience. ... fit™ dial adjustment system offers 270° fit adjustment with the turn of a dial lightweight, low- bulk single layer...
5
My husband and i were out on a ride. I left my helmet on my handlebars while we went in a shop and when we came out it was gone. My husband had me wear his smith signal helmet home. I immediately looked them Up And bought a maroon convoy. The visor is amazing at helping with the sun and ahape is perfect for my head it has mips and comfortable staps. Glad i lost my old one this one will be locked up
5
daniel
Being a motorcycle lover, i 've always loved all things Smith. And my Convoy is a perfect example: great fit, visor does not get in the way of your view and it's lightweight! I prefer it over my Fox Speedframe, which is heavier and the visor's too big and sometimes obstructs the view, especially when going downhill. Next helmet will be another Convoy!!
5
Jefvet
Bought the helmet for riding my E bike on the dirt trails and roads with my wife. I was replacing an older helmet and thought it was time to upgrade. The helmet is extremely comfortable after 2+ hours of riding barely noticeable, very easy to adjust, it is very cooling in the hotter weather and the price was not bad.
5
Reese
I was riding on a jump line( yes. Should have had a full face) I whacked my head so hard( got whiplash and heavily winded) but no concussion. Impressed and will buy another
5
Ken
I ’ m 75- yr CA senior and wear only Smith helmets skiing for years, not only because of the best value, cheaper price always for more features and quality workmanship Smith brand offers. Now I decided to get this MIPS merlot color bike helmet( surprisingly the cheapest MIPS helmet among other offered colors due to this attractive Merlot color other customers obviously ignored). I use it while riding my step- through, foldable 2023 AiPas A2 Elite e- bike counting on the same lightweight fit, comfort and airy experience. This Smith model bike helmet with this color appears really is the best value at the market today, pre- Thanksgiving Holiday.
$199.99
the ideal choice for big climbing days or whenever you need that extra edge next- level cooling: features include 22 strategically placed vents and internal air channels that help keep you cool no matter how hot the pace gets comfortable and secure fit: lightweight ars fit system...
5
BradH029
[ This is a great helmet for the price that comes with outstanding features. It is one of the most comfortable helmets I ’ ve ever tried too! The large fits my 59cm long oval shaped head really well. It ’s a little bulky but that is okay but not too bad. The fidlock chin strap is a really nice feature and I like the 3 point adjustable visor. Can not forget about the 5 star VirginiaTech safety rating and warranty as well!
5
Rjbarr36
[ I got this at my nieces recommendation and I just love it. It's the most comfortable helmet I 've ever owned and adjusts very easily with the turn of a button.
$89.99
made with an in- mold construction designed with 18 vents for continuous airflow boa 360 degree retention system made to be both lightweight and comfortable weight: 248 grams meets safety standards cpsc and
5
kristenm
[ This helmet fits great for those with a larger head. It ’s a lightweight and comfortable helmet. Great value — safe and reasonably priced. Recommend.
5
p1o2ll
i bought my fL- 1. 3 weeks ago. i was using my old bern brentwood for 4 years.. aFL1 is nais because comes mith more air vents. i compare to Brentwood same style
$119.95-$119.99
Purchased my first dedicated road bike this year, and was looking for a nice lightweight helmet with MIPS. ... Good features and ventilation for the
5
DJRap
[ Purchased my first dedicated road bike this year, and was looking for a nice lightweight helmet with MIPS. I was able to snag this helmet during a sale, and I ’ m very happy I did. Good features and ventilation for the price.
5
CTaylor
[ I began straying from mountain biking recently and got a Gravel bike. Wanted a lighter and more vented helmet and my Giro mtb helmet has always fit perfect and been so comfy. This is the same way! Consistent sizing, no hot- spots or areas where the cinch system pinches or stabs my head. And it is light enough and vented enough that on my first 2 hour ride I never once even thought about the helmet being on my head, and that is the best achievement of any performance product in my book!
5
jwo77
[ I bought this helmet about a month ago and it has been very good. The helmet is very comfortable and allows wind in very well so I was not hot. Overall very good helmet.
$54.99
top- level mountain biking styling at a value price with all the features needed to conquer fire road adventures and swooping singletrack trails. ... in- mold polycarbonate shell with eps liner snap- fit 2 visor 16 vents and deep internal
When selecting a lightweight mountain bike helmet, consider features such as ventilation, fit, and safety certifications. A well-ventilated helmet will keep you cool during rides, while a secure fit ensures comfort and stability. Additionally, look for helmets that incorporate advanced safety technologies to protect against impacts.
The weight of a mountain bike helmet can significantly impact your performance, especially during long rides or climbs. Lighter helmets reduce fatigue and allow for better maneuverability, making them ideal for mountain biking. However, it's essential to balance weight with safety features to ensure adequate protection.
Lightweight mountain bike helmets are typically made from materials such as expanded polystyrene (EPS) foam for impact absorption and polycarbonate or in-molded shells for durability. These materials help keep the helmet lightweight while maintaining safety standards. Some helmets may also feature moisture-wicking liners for added comfort.
While lightweight mountain bike helmets are designed for performance and comfort, their suitability can depend on the type of riding you plan to do. They are great for cross-country and trail riding, where weight and ventilation are crucial. However, for more extreme downhill or enduro riding, you may want to consider helmets with additional coverage and protection.
To ensure a proper fit for a lightweight mountain bike helmet, measure your head circumference and refer to the manufacturer's sizing chart. The helmet should sit level on your head, with the front edge just above your eyebrows. Adjust the straps and retention system for a snug fit without causing discomfort, ensuring it stays in place during rides.
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