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Alpinestars SM5 Compass MX Helmet - Blk Yellow Fluo Matt


Visor: None
Integrated drop-down visor: None
Closure: D-Ring

As low as £199.99
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The masters of MX protection have crafted the SM5 MX Helmet: Alpinestars have questioned and re-built every aspect of what makes a fantastic motocross helmet. The SM5 comes with a price point that is accessible to all. What you get is one of the lightest mx helmets available. A polymer blend shell with varying degrees of thickness is engineered to deliver the optimal combination of impact protection and light weight. Due to the brand's understanding of all other aspects of motocross gear, the Alpinestars team engineered a raised area with padding to reduce the forces transmitted to the collarbone in case of a crash. And, cool are not just the graphics, the whole structure is ultra-ventilated for a cooler head! Verdict: It does not get much better than this!

Manufacturers Specs

Alpinestars Supertech M5 construction features:

• The lightweight outer shell is constructed from advanced impact-resistant thermoplastic
• Two shell sizes
• The inner and outer surfaces are engineered to minimise the effects of oblique impacts
• Multiple density inner liner to ensure the correct density in the correct area for enhanced impact absorption
• Patented visor release system ensures the visor is released with the correct pre-determined amount of force, irrespective of the angle of impact
• 'Ultra'-ventilation and high levels of heat transfer due to multiple air inlets and exhaust ports
• The visor has been designed to direct air into the ports for enhanced airflow.

Supertech SM5 shell design & features:

• Raised area on the side shell with soft EPS foam prevents damage to collarbone in the event of a crash
• Emergency release system and removable cheek pads permit the safe and easy removal of the cheek pads while the helmet is still on, while the 3D contoured foam ensures rider comfort
• Removable comfort liner with Silverplus(R) treated anti-bacterial fabrics for excellent moisture wicking, effectively drawing perspiration away from the skin
• Anti-microbial liner is removable and washable
• Hydration tube channels are integrated into the helmet’s cheek pads for convenience and performance
• The soft textile chin strap is 26mm and is wider than certification requirements for optimal safety and rider comfort
• Stainless steel D-rings to ensure a tight and secure fit

Patented Visor Release System

• Allows visor to release in a crash with the correct pre-determined amount of force regardless of the angle of impact

More Information
Sale No
Brand Alpinestars
Colour Black
Model SM5
Finish Matt
Type Motocross
Gender Men, Women
Year 2020
Category Motocross Helmets
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Alpinestars Motocross Helmets Size Guide

It is easy to find the helmet size to fit you. Motorcycle helmets should fit snugly on your head even if you have got big hair. Ideally pressure should feel firm and even all over.
Where to Measure To find the right helmet size, measure all the way around your head at the widest part from the front of your forehead right around the back of your head and back to the front again, keep the tape measure above your ears as shown (F) and make sure it feels firm but not overtight or too loose - all measurements in centimetres (CMs).

Helmet SizeCMs Measured
SizeOnline Availability
XS Select size for estimated delivery date
S Select size for estimated delivery date
M Select size for estimated delivery date
L Select size for estimated delivery date
XL Select size for estimated delivery date
XXL Select size for estimated delivery date

About the Brand


Alpinestars is one of the best known names in motorcycle clothing. Their stellar reputation has been built on a foundation of developing the finest professional racing products. It’s engineered apparel that satisfies the demands of some of the toughest competitors, and harshest environments in motorsports.