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Fox Racing Flux Helmet


Item # FXR000D

4 5

Community Rating | 1 Review

  • 100% Guaranteed Returns

  • Free Shipping

    on orders over $50
Item # FXR000D

At this price point it's typically one-size-awkwardly-fits-all, or else it’s a simple helmet lacking adequate airflow and an effective retention system. Fox Racing, however, has an advantage — unlike the competition, the Flux is built with attention to these all-important details.

This means fewer molds and resources tied up in multiple, overlapping designs. Due to this, Fox Racing focuses its collective efforts on making the Flux one of the lightest, best-breathing, and safest helmets in this bracket. In fact, it easily passes the stringent CPSC safety standard, complete with 20 large vents, and it comfortably balances a triple-beam under the 400-gram mark.

Those features contribute to the reason that many riders often have more than one Flux on deck. But there's more to it than that. Fox Racing was one of the first to forgo the industry's tradition of remarketing visor-clad, skinny-tire helmets to mountain bikers. Starting fresh, the original Flux successfully melded additional coverage with plenty of ventilation, leaving ultra-aero, minimalist helmets for gran fondos.

A Detox fit system is quick to adjust, and it comfortably wraps the head. The Flux is constructed from expanded polystyrene foam with an in-mold shell, and Fox Racing provides seven finishes to complete any kit.

The Fox Racing Flux Helmet is available in sizes XS/S, S/M, and L/XL. It comes in the colors Acid Green, Black Camo, Black/red, Fatigue Green, Matte/black, Orange, and Snow Camo.

Tech Specs

20 vents
Adjustable Vents:
Fit Adjustment:
Detox Retention Fit
Multiple Impact:
Claimed Weight:
390 g
Recommended Use:

Size chart



FOX Helmet
Hat Size 6 7/8 - 7 7 1/8 - 7 1/4 7 3/8 - 7 1/2 7 5/8 - 7 3/47 7/8 - 8
Head Circumference 21.7 - 22.0in
22.4 - 22.8in
23.2 - 23.6in
24.0 - 24.4in
24.8 - 25.2in
How to Measure:
For best results, take measurements over your underwear.
Measure around your head where your hat would fit comfortably.

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Here's what others have to say...

4 5

Pretty Good

  • Familiarity: I've used it several times

This is a pretty nice helmet. Great price relative to comparable options, good coverage for safety, not too heavy, GREAT ventilation. The only drawback to me is that I prefer to have a dial in the back that I can spin easily with one hand, the adjustment system on this is a bit trickier to do while on the trail. Once you get it dialed in though, it is very comfy and you don't know it's there.

Want a nice AM (all mountain, more protective than a classic XC helmet) style helmet without breaking into the triple digits? This is a great choice.

Sizing is pretty straight forward with only two choices, but refer to the size chart if you aren't sure.