Bell Helmets MX-9 Adventure MIPS Switchback Helmets
- 3 Shell and EPS Sizes for a Personalized Fit
- Industry-Leading Five-Year Warranty
- Integrated/Removable shield with NutraFog II™ anti-fog, anti-scratch and UV protection
- Lightweight Polycarbonate/ABS Shell Construction
- Padded Chin-Strap with D-Ring Closure
- Removable/washable anti-bacterial interior
- Two point adjustable Visor™ with air intake vents
- Velocity Flow Ventilation™ system for maximum cooling
- CERTIFICATION: DOT, ECE
Photos show smoke shield, helmet ships with clear shield only
Please Note: We can only ship Bell Helmet products to addresses in the 50 US states, US Territories and any APO/FPO addresses (per manufacturer’s restrictions).
Read on for more details.
|Size||Head (inches)||Head (cm)||Hat Size|
|XS||20 7/8 – 21 5/8||53-54cm||6 5/8 – 6 3/4|
|Small||21 5/8 – 22||55-56cm||6 7/8 – 7|
|Medium||22 1/2 – 22 3/4||57-58cm||7 1/8 – 7 1/4|
|Large||22 3/4 – 23 1/4||59-60cm||7 1/4 – 7 3/8|
|XL||23 5/8 – 24||61-62cm||7 1/2 – 7 5/8|
|XXL||24 1/2 – 24 3/4||63-64cm||7 3/4 – 7 7/8|
|XXXL||25 5/8 – 26||65-66cm||8 1/8 – 8 1/4|
This sizing chart is based on information provided to us by Bell Helmets and is subject to change without notice, although we will do our very best to keep it up to date. We recommend that you measure your head by wrapping a cloth tape measure around your head about 1 inch or 2.5 cm above your eyebrows, which should be the largest portion of your head. Choose the helmet that is closest to your measured head size. If you fall between two sizes, choose the smaller of the two. You want a helmet to fit snug without being uncomfortable.
Need help choosing the right shape and size helmet for your own noggin?
Learn about the LidPicker!