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Bike Stop Online is Now Part of Infinity Motorcycles
As of 1 November 2024, Bike Stop Online has officially joined Infinity Motorcycles, the UK’s leading retailer of motorcycle gear. The current Bike Stop website has now closed.
For the latest in helmets, clothing, and accessories, visit www.infinitymotorcycles.com — featuring over 100 top brands and Free Next Day UK Delivery.
The Bike Stop store at 104 High Street, Stevenage, will continue to operate as usual.
With the MX-9 Adventure Mips, pavement is optional. This go-anywhere helmet gives you the best of both dirt and street. It's designed to adapt to your version of adventure.
Out of stock
✕
Bell Helmets
S / M / L
Circumference (cm)
2XS
54 - 55
XS
56
S
57
M
58 - 59
L
61 - 62
XL
63 - 64
2XL
65 - 66
3XL
67 - 68
How to Measure
To find the right helmet size, measure all the way round your head at the widest point. Keep the tape measure above your ears and make sure that the tape measure is not too tight, nor too loose. Take your measurement in centimeters (cm), not inches.
Checking for Best Fit
When a new helmet is first worn, it should actually be slightly tight, with the interior coming into contact with most of the head, but not so restrictive that it causes any pain. There should be no "hot spots" - places where the helmet's interior puts pressure on specific points of the skull or face - but it should not move around freely. With time, a helmet will adjust to match the shape of the rider's head as it is worn and goes through "break-in" and loosens up a little. However, it should never become loose enough to easily turn from side to side.
Put the helmet on - it should be a little tight as it goes on over the head
The helmet should sit on the head evenly with the eye port's upper edge sitting just above the eyebrows and have good peripheral vision available to see side-to-side
Try putting a finger between the helmet interior and the head. If it easily fits, a smaller size should be tried next. Note that some helmet models allow for the cheek pads to be changed out for better fitment, so consider this too when checking for proper sizing
From the roughest singletrack to urban blacktop, the MX-9 Adventure Mips gets you there safely in style. We've taken our MX-9 and added even more capability with an integrated anti-fog, anti-scratch clear face shield. The shield flips up and leaves enough room for goggles in extreme conditions, or it can be removed completely. Conversely, the adjustable visor can be removed for a stealth street look. Mips protection, Velocity Flow ventilation, and a removable, washable, antimicrobial liner round out a highly adaptable package.
Features: •Impact Management - MIPS®
•Shield Type - Integrated/Removable Shield with NutraFog II Anti-Fog, Anti-Scratch and UV Protection
•Visor - Two-Point Adjustable Visor with Air-Intake Vents
•Ventilation - Velocity Flow Ventilation System for maximum cooling
•Fit System - 3 Shell and EPS Sizes for a personalised fit
•Product Weight - 1698G +/- 50G (SIZE M)
•Certifications - DOT (US)/ECE (EU)
•Anti-Fog Coating - NutraFog II Anti-Fog, Anti-Scratch and UV Protection
To find the right helmet size, measure all the way round your head at the widest point. Keep the tape measure above your ears and make sure that the tape measure is not too tight, nor too loose. Take your measurement in centimeters (cm), not inches.
Checking for Best Fit
When a new helmet is first worn, it should actually be slightly tight, with the interior coming into contact with most of the head, but not so restrictive that it causes any pain. There should be no "hot spots" - places where the helmet's interior puts pressure on specific points of the skull or face - but it should not move around freely. With time, a helmet will adjust to match the shape of the rider's head as it is worn and goes through "break-in" and loosens up a little. However, it should never become loose enough to easily turn from side to side.
Put the helmet on - it should be a little tight as it goes on over the head
The helmet should sit on the head evenly with the eye port's upper edge sitting just above the eyebrows and have good peripheral vision available to see side-to-side
Try putting a finger between the helmet interior and the head. If it easily fits, a smaller size should be tried next. Note that some helmet models allow for the cheek pads to be changed out for better fitment, so consider this too when checking for proper sizing
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