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ATV Summer Helmets

Bell MX-9 Adventure MIPS Motion Helmet

$299.95
In stock
Only %1 left
Stock #
71757
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Mag-9, Moto-9, Moto-10, Revolver EVO, Rogue
Size Circumference (cm) Hat size (in) Cheek Pad Size (mm)
XS 54 - 55 6 3/4 - 6 7/8 45
S 55 - 56 6 7/8 - 7 40
M 57 - 58 7 1/8 - 7 1/4 40
L 58 - 59 7 1/4 - 7 3/8 35
XL 60 - 61 7 1/2 - 7 5/8 35
2XL 62 - 63 7 3/4 - 7 7/8 30

 

Custom 500, Moto-3, Qualifier, Riot, Scout
Size Circumference (cm) Hat size (in) Cheek Pad Size (mm)
XS 53 - 54 6 3/4 - 6 7/8 50
S 55 - 56 6 7/8 - 7 40
M 57 - 58 7 1/8 - 7 1/4 50
L 59 - 60 7 1/4 - 7 3/8 40
XL 61 - 62 7 1/2 - 7 5/8 45
2XL 63 - 64 7 3/4 - 7 7/8 35
3XL 65 - 66 8 - 8 1/4 35

 

Star, Pro Star, Race Star
Size Circumference (cm) Hat size (in) Cheek Pad Size (mm)
XS 53 - 54 6 5/8 - 6 3/4 35
S 55 - 56 6 7/8 - 7 35
M 57 - 58 7 1/8 - 7 1/4 35
L 59 - 60 7 3/8 - 7 1/2 35
XL 61 - 62 7 5/8 - 7 3/4 40
2XL 63 - 64 7 7/8 - 8 35

 

Bullitt
Size Circumference (cm) Hat size (in) Cheek Pad Size (mm)
XS 54 - 55 6 3/4 - 6 7/8 35
S 55 - 56 6 7/8 - 7 30
M 57 - 58 7 1/8 - 7 1/4 30
L 58 - 59 7 1/4 - 7 3/8 25
XL 60 - 61 7 1/2 - 7 5/8 30
2XL 62 - 63 7 3/4 - 7 7/8 25

 

Bullitt GT
Size Circumference (cm) Hat size (in) Cheek Pad Size (mm)
XS 53 - 54 6 5/8" - 6 3/4" 45
S 55 - 56 6 7/8" - 7" 35
M 57 - 58 7 1/8" - 7 1/4" 45
L 59 - 60 7 1/4" - 7 3/8" 35
XL 61 - 62 7 1/2" - 7 5/8" 45
2XL 63 - 64 7 7/8" - 8" 35
RS-2
Size Circumference (cm) Hat size (in) Cheek Pad Size (mm)
XS 54 - 55 6 3/4 - 6 7/8 30
S 55 - 56 6 7/8 - 7 35
M 57 - 58 7 1/8 - 7 1/4 30
L 58 - 59 7 1/4 - 7 3/8 35
XL 60 - 61 7 1/2 - 7 5/8 30
2XL 62 - 63 7 3/4 - 7 7/8 35

 

MX-9
Size Circumference (cm) Hat size (in) Cheek Pad Size (mm)
XS 53 - 54 6 5/8 - 6 3/4 40
S 55 - 56 6 7/8 - 7 35
M 57 - 58 7 1/8 - 7 1/4 40
L 59 - 60 7 3/8 - 7 1/2 35
XL 61 - 62 7 5/8 - 7 3/4 35
2XL 63 - 64 7 7/8 - 8 30

 

Pit Boss
Size Circumference (cm) Hat size (in) Cheek Pad Size (mm)
XS 53 - 56 6 7/8 - 7 50
S 53 - 56 6 7/8 - 7 40
M 56 - 58 7 1/8 - 7 1/4 50
L 58 - 60 7 1/4 - 7 3/8 40
XL 61 - 63 7 1/2 - 7 5/8 45
2XL 61 - 63 7 1/2 - 7 5/8 35
3XL 63 - 64 7 7/8 - 8 1/4 35

 

SRT
Size Circumference (cm) Hat Size (in) Cheek Pad Size (mm)
XS 53 - 54 6 5/8 - 6 3/4 40
S 55 - 56 6 7/8 - 7 35
M 57 - 58 7 1/8 - 7 1/4 40
L 59 - 60 7 3/8 - 7 1/2 35
XL 61 - 62 7 5/8 -7 3/4 35
2XL 63 - 64 7 7/8 - 8 30
3XL 65 - 66 8 1/8 - 8 1/4 25

 

Moto-9 Youth
Size Circumference (cm) Hat size (in) Cheek Pad Size (mm)
S/M 49-51 6 1/8 - 6 3/8 60
L/XL 51-53 6 3/8 - 6 5/8 50
 
MX-10 MIPS Youth
Helmet Size CM IN Hat Size (IN)
S 49–51 19–20 1/8 6–6 3/8
M 51–52 20 1/8–20 1/2 6 3/8–6 1/2
L 52–53 20 1/2–20 7/8 6 1/2–6 5/8
Cheek Pad Size MM Hat Size (IN)
S 45 Interchangeable (S–L)
M 45 Interchangeable (S–L)
L 40 Interchangeable (S–L)

Sizing information is provided by the manufacturer and does not guarantee a perfect fit. Please use this chart as a guide only.

Bell MX-9 Adventure MIPS Motion Helmet

The MX-9 Adventure Mips is built for riders who see pavement as optional. Designed to bridge dirt and street, this adaptable helmet adjusts effortlessly to your style of adventure.

Features:

  • Mips: Slip-plane technology designed to help reduce rotational forces from certain impacts
  • Three Shell Sizes: Ensures a more proportional and accurate fit across the size range
  • Ionic Plus Padding: Quick-drying interior material that helps manage sweat and reduce odor
  • Communication System Ready: Integrated speaker pockets and a clean fit for easy Bluetooth installation

Specifications:

  • Certifications: DOT (US), ECE (EU)
  • Weight: 1698 g +/- 50 g (Size M)
More Information
Gender Unisex
Stock # 71757
Brand Bell Helmets
Vend BL
In Stock Message Special Order - Requires 10-14 business days prior to shipment. *Stock May Vary*
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