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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.
(1) 
$69.99
The helmet provides great comfort and breathability. ... Great safety features ... It also has the technology to help with head movement in a fall. ... Combined with a new mongoose bicycle this helmet was a necessary addition for added safety/
5
Melissamom
Fits perfectly Love the safety!! Feel better knowing it ’s a well made helmet
5
JHolmes
Combined with a new mongoose bicycle this helmet was a necessary addition for added safety/ protection.
5
JB3314
The helmet provides great comfort and breathability. It also has the technology to help with head movement in a fall.
5
Mamamom
Saved my son from a serious concussion. Crashed headfirst. Cracked the helmet- saved him from a severe concussion. He wore it snug& correctly.
5
Bill
Good fit and good price as well as mips certificate
$69.99
It fits well, is super lightweight and comfortable, and the Roc- Loc fit system allows a perfect fit. ... Bought this because of the safety features. ... Easy to
5
babalo
I chose this because of the magenta/purple color and love it. While it's marketed as a youth helmet, it can fit a woman's head. I 'm a 5' 4 '' adult woman, and my head size is 55- 56, so within the 50- 57 size. I tend to have a `` hot head, '' but the ventilation on this helmet is excellent, so my hair was n't wet after a 1- hour bike ride. It fits well, is super lightweight and comfortable, and the Roc- Loc fit system allows a perfect fit. My only scare was the Roc- Loc was fully tightened when shipped, so when I first tried it on I thought it was too small. Once we loosened it, it fit well, and then even better once tightened.
5
Oregon mtber
My daughter loves this new helmet! I like knowing she is protected when riding her bike!
5
Zoe2
I bought the helmet recently for my granddaughter and she loves it!
5
Wyatt520
Bought this because of the safety features. Easy to adjust. No fuss.
5
Jomide33
Great helmet and great colors. Love that it has MIPS
$250.00
Lightweight, good air flow, nice style. ... super comfortable and lightweight. ... Comfortable, breathes very well, very good protection and fits well ... Love having the extra coverage and tech protecting my
5
Matthew B.
This is my fourth Forefront helmet. They fit perfectly never get too hot and are light and durable. The only parts that are subject to wear and tear are the pads. They do a great job of resisting sweat but eventually after drenching them a few hundred times they succumb.( I am amazed at how long they last given what ’s tossed at them, but wish I could buy replacements.
5
Kellie G.
Comfortable and cooler than I anticipated. Love having the extra coverage and tech protecting my brain!
5
Gavin R.
Great fit and it holds my Smith sunglasses perfectly
5
Stephen C.
Comfortable, breathes very well, very good protection and fits well
5
Don M.
Helmet is light, fits well and comfortable. I have not had much time to wear it as my new bike has not yet arrived. Hopefully I will never need to find out if the safety features are as good as they claim. I did purchase this helmet based on those safety features though.
$54.95
Fits well and feels lightweight. ... This helmet meets my son's needs for safety and it is cool enough to wear. ... Fits well looks good and it ’s adjustable inserts
5
Tony37478548
Great product! This helmet meets my son's needs for safety and it is cool enough to wear.
5
Yanigue
Excellent, comfortable, and is a helmet that gets the job done.
5
Jeepin1423
Fits well looks good and it ’s adjustable inserts help
5
Pastry7376
I bought this helmet for my 9 year old son who has a giant head. Fits him really well. Adjusts nicely. He ’s planning on using it for biking, scootering and skateboarding. Great all around
5
anyyBritt
Just bought this helmet and absolutely loooove the way it fits! 10/10:)
$199.99
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. ... It's the most comfortable helmet I 've ever owned and adjusts very easily with the turn of a
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.
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!
$85.00
The Smith Convoy is lightweight and breathable. ... This thing is the most comfortable lid I have ever worn. ... Comfy and sizing is accurate ... All summer she wore her helmet very faithfully while pulling the
5
Ty M
[ I went from a more expensive helmet that needed to be replaced, due to age, to this helmet and glad that I did. It feels like a more expensive helmet. Size chart was accurate, it sits well on my head, and stays put while riding. The visor position is fixed but is exactly where I need it to be. Will but again when the time comes.
5
kmtreadw
[ It ’s a little wide but it sits comfortably and the air flow is superb! I would recommend this helmet to anyone. Plan on sticking with Smith in the future.
5
Scotty
[ I bought this helmet for myself, but my wife stole it from me. Nice and snug with the ability to customize with the adjustable fit system. If I had to do it again, I 'd buy two!
5
kimmy3184
[ I bought this Helmet about a month ago, and I 'm extremely glad I did. The Smith Convoy is lightweight and breathable. It's super comfortable and stays in place. It's a great price for the value, especially with the MIPS safety feature. Stylish.
5
Kline
[ I ’ ve now ridden this multiple times and it is exactly what I was looking for. Basic, good looking budget- friendly helmet! Would recommend to anyone looking for the same.
$350.00
Lightweight and comfortable for all day riding. ... I love how lightweight this helmet is! ... Excellent fit, thoughtful mandible design( opening at front), and better looks than
5
Debra Z.
Light and comfortable- love it!!!- perfect for riding the lift and some enduro action
5
Sam H.
Gray fit, and no visual instructions. Compared to my buddies helmet from a competitor and this has massive air flow to keep your head cool.
5
Kristopher D.
Great fit, breathability and light weight! The Mainline checks all the boxes for safety, something I always count on Smith for.
5
Justin P.
This is easily the most comfortable full face I 've ever used. The pads included allow you to really dial in the fit. The lack of the front mesh piece makes it easy to get a bit valve or squirt from a bottle. There is some noticeable MIPS rattle, but with everything else going on around me when I 'm riding downhill, it's of no concern.
5
William C.
Love this helmet. Fits great, light weight, plenty of ventilation
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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