Which is safer, the Fox V1 or the Bell MX-9 MIPS?

Both meet DOT and ECE standards. The Bell adds MIPS, which is designed to reduce rotational forces in angled impacts. On paper the Bell offers more protection technology.

Which helmet fits better for odd head shapes?

The Bell comes in three shell and EPS sizes, which usually gives a closer fit across the size range. The Fox V1 uses a single shell, so fit depends more on the padding in each size.

Can I wash the inside of either helmet?

The Bell MX-9 liner is removable and washable, and it is anti-microbial. The Fox V1 liner is fixed, so clean it with a damp cloth and mild soap.

Which is better for track use?

Both use a Double-D or D-ring strap, the type required on racetracks. The Fox V1 is explicitly ECE 22.06 approved, which matters at many European tracks.

Is the Bell worth stepping up to over the Fox?

If you ride hard off-road and want MIPS plus a washable liner, yes. If you want a simple, well-vented helmet and don't need MIPS, the Fox V1 is enough.

Which vents better in hot weather?

The Fox V1 has 7 intake and 4 exhaust ports plus a roomy chin piece. The Bell uses Velocity Flow venting and a vented roost guard. Both move air well; the Fox feels airier around the chin.

Fox Racing V1 Helmet vs Bell MX-9 MIPS Disrupt

The Bell MX-9 MIPS Disrupt is the stronger pick for most riders. It adds MIPS rotational-impact protection, a removable washable anti-microbial liner, an adjustable visor and three shell sizes for a closer fit. The Fox V1 is a simpler polycarbonate helmet with a Double-D buckle, ECE 22.06 and DOT certification, and generous venting, but no MIPS and a fixed liner. Owners of both praise comfort and value; the Bell edges ahead on safety tech and fit range.

Choose the Fox V1 if you want a straightforward, well-vented motocross helmet with a race-legal Double-D buckle and you don't need MIPS.
Choose the Bell MX-9 MIPS if you want rotational-impact protection, a washable liner and a wider spread of shell sizes for a better fit.

Prices

Fox Racing V1 Helmet: $156.46 at chromeburner.com (last seen Nov 9)
Bell MX-9 MIPS Disrupt: $169.95 at powersportsid.com (last seen Nov 9)
Difference: the Fox Racing V1 Helmet is $13.49 cheaper than the Bell MX-9 MIPS Disrupt at the latest prices (Nov 9)

	Fox Racing V1 Helmet	Bell MX-9 MIPS Disrupt
Rotational impact protection	None; standard EPS liner	MIPS liner reduces rotational forces in some impacts
Shell sizes	Single shell across sizes	Three shell and EPS sizes for a closer fit
Liner	Fixed comfort liner	Removable, washable anti-microbial liner with Ionic+ padding
Visor	Large fixed peak	Fully adjustable Flying Bridge visor with air intakes
Venting	7 intake and 4 exhaust ports, roomy chin piece	Velocity Flow ventilation with integrated vented roost guard
Closure	Double-D buckle, required on racetracks	D-ring closure
Certification	DOT and ECE 22.06	DOT and ECE
Weight	Not published by the maker	About 1533 g in size M

Spec	Fox Racing V1 Helmet	Bell MX-9 MIPS Disrupt
Style	Full Face, Off-road	—
DOT Certified	Yes	—
ECE Certified	Yes	—
Use	Motorcycle	—
Safety Standards	—	ECE (EU), DOT (US)
Head Circumference	—	55-56 cm
Impact Resistance	—	High impact resistance (Mips energy management …
Impact Protection Technology	—	Mips®, Mips energy management system
Rotational Impact Protection	—	Yes
Helmet Size	—	XL, M, S, XS, XXL
Adjustment System	—	3 shell and EPS sizes for a personalized fit
Shell Material	—	Polycarbonate

Spec	Fox Racing V1 Helmet	Bell MX-9 MIPS Disrupt
Construction Type	—	Polycarbonate shell
Liner Construction	—	EPS sizes
Removable Liner	—	Yes
Closure Type	—	D-ring closure
Liner Material	—	Anti-microbial liner
Padding Type	—	IONIC+™ PADDING
Shell Type	—	Full
Face Shield	—	No
Helmet Color	—	White, Black, Fasthouse Prospect Matte Black/Wh…
Helmet Style

Fox Racing V1 Helmet vs Bell MX-9 MIPS Disrupt

Prices

Fox Racing V1 Helmet vs Bell MX-9 MIPS Disrupt

Prices

Bell MX-9 MIPS Disrupt

What separates them

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