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Bell Helmets MX-9 Adventure MIPS RSD Full Face Helmet

DOT Certified
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Bell Helmets MX-9 Adventure MIPS RSD Full Face Helmet

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  • Polycarbonate/ABS (Acrylonitrile Butadiene Styrene) shell construction
  • Three shell and three EPS (Expanded Polystyrene) sizes for a personalized fit
  • Velocity Flow Ventilation system for maximum cooling
  • Integrated/removable shield with NutraFog II anti-fog, anti-scratch, and UV protection
  • Two point adjustable visor with air intake vents
  • Removable/washable anti-bacterial interior
  • Additional Dark Smoke shield included
  • Meets or exceeds DOT and ECE certifications
  • Titanium

Bell MX-9 MIPS and MX-9 Adventure MIPS Helmets

Head (in) 20-7/8 - 21-1/4 21-5/8 - 22 22-1/2 - 22-7/8 23-1/4 - 23-5/8 24 - 24-3/8 24-3/4 - 25-1/8 25-5/8 - 26
Head (cm) 53 - 54 55 - 56 57 - 58 59 - 60 61 - 62 63 - 64 65 - 66
Hat Size 6-5/8 - 6-3/4 6-7/8 - 7 7-1/8 - 7-1/4 7-3/8 - 7-1/2 7-5/8 - 7-3/4 7-7/8 - 8 8-1/8 - 8-1/4
Helmet Shell, EPS, and Cheek Pad Sizing
Helmet Size XS S M L XL XXL 3XL
Shell Size 1 2 3
EPS Size 1 2 3
Helmet Size XS S M L XL XXL 3XL
Cheek Pad Thickness (mm) 40 35 40 35 35 30 25
Cheek Pad Size Range Cheek pads are interchangeable across all size ranges

General Sizing Information

If you are unsure about your size, compare your body measurements to the charts provided to determine the correct fit. These charts will give you a good idea of the size to order, but be sure to read special sizing information that may accompany an item description. Some merchandise dimensions may vary from the averages charted here.

Head Circumference

Measure around head one inch above eyebrows and across the largest portion on the back of the head and use the above cross reference chart.


Age & Gender
MX-9 Adventure
Model Name for Gear
MX-9 Adventure
Bell Helmets
Safety Certification
DOT Certified

Item Numbers

Details Item Number Availability Store Pickup
Details:Titanium  3XL Item #650-7094956 Availability:Backorder: Ships in 7-12 daysStore Pickup:Unavailable


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