FOX Mainframe Youth MIPS MY25 MTB Helmet White
$139.00
Stylish, Affordable, MIPS Trail Helmet. The Mainframe Youth MIPS Helmet (48-52cm) gives you exactly what you’re looking for in an affordable helmet: proven safety features combined with easy trail steez. Featuring extended coverage to protect more of your kids noggin’, the proven MIPS impact protection will keep your brain safe in the event of a crash by absorbing and redirecting energies and forces that could otherwise damage it. Now has a Virginia Tech 5-Star helmet rating.
Only 2 left in stock
FO31155008OS
Bicycle Helmets, MTB Helmets
2025, FH, Fox Racing, Helmet, Kids, Mainframe, MIPS, MTB, MY25, Trail, Virginia Tech 5 Star Rating
GTIN: 191972966125
Brand: FOX Brand: FOX
GTIN: 191972966125
Brand: FOX Brand: FOX

FOX Mainframe Youth MIPS MY25 MTB Helmet White
Only 2 left in stock
Before you go mountain biking you should put a high quality and good looking helmet on your kids head. The updated Mainframe brings premium finish and protection to more affordable prices. Inspired by the Speedframe it has the Fox design language and low key style in a helmet that’s made for MTB trails and off road adventures. With lower rear coverage, rotational impact protection, and top 5 star Virginia Tech rating it’s got all the modern features you need. The most important thing is how it feels on your head so lucky it has 13 big vents for airflow and a lightweight integrated fit system keep you comfy. This is one of our best selling models, from one of the industries most reliable brands so come down to the shop and try one on.
With a lightweight fit system, the Mainframe MIPS Helmet will also keep you cool, and should the sweat stank build up, you can easily whip the moisture-wicking liner out and run it through the wash. Great protection at a price that’ll save your wallet undue stress.
- Proven MIPS impact protection system reduces rotational forces in a crash
- 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
- Note: Avoid exposure to aerosol sprays like bug repellent and sunscreens as they can cause your helmet’s finish to peel
- Weight: 390 g, medium
- EPS, PC, PA, polyester
This helmet also meets the required AS/NZS 2063 Australian Standard.
We carry a wide range of helmets in our Melbourne store and online. Need help choosing a Fox helmet? – We can help!
Size Guide
Size | Head Size | Hat Size | Weight |
---|---|---|---|
Youth (OS) | 48-52 cm | 15.3-16.6 cm | 320 g |
S | 51-55 cm | 16.2-17.5 cm | 350 g |
M | 55-59 cm | 17.5-18.8 cm | 385 g |
L | 59-63 cm | 18.8-20.1 cm | 420 g |
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