How to Choose a Bike Helmet
Galbraith Bike Park
Fox MainFrame Mips Bike Helmet
$57.87Compared to $89.95* Save 35%
This Fox trail helmet features the Mips® impact protection system and extended coverage for added safety. It also has optimized venting and channels for efficient cooling.
- Proven Mips® impact protection system reduces rotational forces in a crash by absorbing and redirecting energies and forces otherwise transmitted to the brain
- Extended coverage for added safety
- Optimized venting with channeled, in-molded EPS provides efficient cooling
- Removable, washable moisture wicking liner
- Mips® integrated fit system reduces weight and provides a more comfortable, seamless fit
Imported.
To find your size, position a tape measure just above your ears and about 1 in. above your eyebrows. Keep the tape level to measure the circumference around the largest part of your head and then find the corresponding size in the Technical specs info.
View all Fox Mountain Bike Helmets| Best Use | Mountain Biking |
|---|---|
| Helmet Style | Mountain Bike |
| Helmet Construction | In-mold |
| Shell Material | 42% expanded polystyrene/15% polycarbonate/14% polyamide/11% polypropylene/4% polyester |
| Head Circumference | S: 20.1-21.7 inches M: 21.7-23.2 inches L: 23.2-24.8 inches |
| Vents | 17 |
| Visor/Brim | Yes |
| Weight | S: 12.35 ounces M: 13.58 ounces L: 14.82 ounces |
| Gender | Unisex |
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Customer Images
Location:Texas
Age:75 or over
9 months ago
Solide performance and value
Well made and comfortable and very affordable. It provides the protection of MIPS. What’s not to like.
Age:75 or over
Location:Salem, Oregon
5 days ago
Helmet is 4 years old!
No, I do not recommend this product
Helmet fits great but was manufactured in 2022. It was four years old when delivered. Unfortunately it would only be safe to use for three more years.
Location:San Luis Obispo, CA
Age:65–74
5 months ago
Very comfortable.
Yes , I recommend this product
Very comfortable. Sized correctly as a large.
Age:65–74
Location:Utah
Age:Under 18
2 weeks ago
Faulty product
No, I do not recommend this product
Visor did not detach on impact when my kid crashed his bike causing his head to impact the ground because the helmet rotated backwards.
Age:Under 18
11 months ago
Purchased on 9/2025 and helmet was made on 12/2021
No, I do not recommend this product
Unable to rate helmet, as REI sent a 3.5 yo product. One star is for REI selling old helmets.
8 months ago
4 months ago
11 months ago
No, I do not recommend this product
