SKU: HEAP1927 Alpinestars SM3 Heat Helmet Gloss Red/White/Black

Alpinestars SM3 Heat Helmet Gloss Red/White/Black
# 8301026-3126

Engineered for MX, Enduro, and off-road riding, the SM3 Helmet integrates advanced technologies and innovations designed to enhance ease of use, comfort, and impact protection.

• The SM3 helmet conforms to both DOT certification and ECE 2206 homologation for use worldwide.
• Varied thickness shell construction for optimized protection and light weight
• 6-piece EPS liner with three different densities
• Polished inner EPS liner with special coating to reduce friction with comfort liner for rotational impact management
• One outer shell and two inner EPS liner sizes, with optional +/- 5 mm cheek pads for a tailor made fit
• Breakaway visor
• Alpinestars has introduced a new in-house standard for the SM3 helmet to test the helmet’s chin to conditions heavier than the homologation standard, and in order to pass the Alpinestars’ new standards, the shell thickness and the structure of the helmet design itself have both been optimized on the chin area for superior impact performance.
• The inner and outer surfaces are engineered to minimize the effects of oblique impacts.
• Equipped with an Emergency Release System and removable cheek pads to permit the safe and easy removal of the cheek pads while the helmet is still on, while the 3D contoured foam ensures rider comfort.
• Soft textile chin strap is 25mm for optimal safety and rider comfort.
• Stainless steel D-rings ensure a tight and secure fit.

For more info, see the Sizing Info tab

Alpinestars SM3 is in the Intermediate Oval head shape class.

Proper Fit

Never buy a used helmet or borrow someone else’s helmet. Over time the protective foam in helmets will adjust to the contours of a user’s head. Or it could already have been in a crash. A used or borrowed helmet may not offer as much protection as a new helmet!

Wearing the wrong size helmet can increase your risk of serious injury or death in an accident. A helmet that is too large for your head may be dislodged or knocked off in an accident. To select the right size helmet for your head, follow these instructions:

Measure your head -

• Wrap a tape measure around your head above your eyebrows.
• Use the sizing chart above to select the helmet size that corresponds most closely to your head measurement. If your head size falls between two helmet sizes, try on the larger helmet first and then the smaller size.
• Try on the helmet by grasping both chin straps to pull the helmet completely onto your head, ensuring that the top of your head is in contact with the top of the helmet interior.

To confirm your helmet is the right size, check that -

• The helmet inner lining fits snugly around your head.
• The top pad presses firmly on your head.
• The cheek pads contact your cheeks.
• There is no space around your brow under the inner lining.