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Alpinestars S-M10 TLD Edition 25 Dark Blue Orange Yellow Fluo Red Glossy Offroad Helmet

Size guide

SIZE GUIDE

International size Head measurement (cm)
XS 53-54
S 55-56
M 57-58
L 59-60
XL 61-62
2XL 63-64

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  • Helmet type: Offroad
  • Helmet material: Carbon
  • Chin strap buckle: Double-D
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description

Alpinestars S-M10 TLD Edition 25 Dark Blue Orange Yellow Fluo Red Glossy Offroad Helmet

The goal of the Alpinestars Supertech family of helmets was to create the most advanced, protective, and performance-enhancing helmets possible for riders worldwide. With the S-M10, Alpinestars’ Helmet Development team engineered the helmet to offer the perfect blend of excellent ventilation, and unsurpassed comfort, to create a helmet with the lightest weight possible, all without compromising on any other front.

The S-M10’s design offers a smooth, attractive, aerodynamic profile which is streamlined and free of any external channels and features that might act as a load point in an impact or compromise the overall integrity of the helmet’s construction. The surface curvature promotes reduced friction on impact, allowing deflection and the most efficient transfer of energy to protect the rider’s head from direct force to the skull and referred to the neck and spinal column.

Construction

  • The helmet’s shell construction utilizes a highly advanced molding technology with a multi-composite combination: 1) 3K Carbon, high density carbon outer layer that improves strength and efficiency of energy dissipation over the shell, 2) Uni-directional carbon composite layer that gives significantly greater radial strength around the shell, preventing compression but allowing controlled deflection for reducing transmitted impact energy, and 3) Aramid fiber layer which provides critical penetration protection. This combination of layers is given even greater performance with an epoxy resin bonding that offers the best possible strength and energy management; limited outer shell deflection means the energy spreads wider and is better absorbed by the 4 density EPS liner.
  • The result of the unique shell lay-up process employed in the S-M10 construction results in extremely effective impact protection. The S-M10 returning linear and oblique impact performance which exceeds current helmet regulation standard limits. For direct linear impacts, which is an impact at a 90-degree angle between the helmet and an object, the SM10 surpasses the new ECE 22.06 standard for 2024 by an average magnitude of 46% for regular-speed impacts. New for the ECE 22.06 standard, new requirements now include low-speed and high-speed linear impacts where the SM10 surpasses the new ECE 22.06 Peak Linear Acceleration standards by 23% and 28% respectively.

Key features

  • The S-M10 shell sizing solution ensures each helmet fit size has its own appropriate shell size to deliver the most anatomical solution for the wide variety of fit needs worldwide, providing 4 different helmet shell sizes S, M, L, and XL and 6 consumer sizes from XS to XXL to ensure riders have the correct fit which not only improves comfort and reduces overall weight, but most importantly, improves the effectiveness of the helmet in an impact.
  • Redesigned chin bar’s new profile, where the base area has been specifically sculpted to give a relief section, raised to clear the collarbone, with a new softer EPS liner which extends beyond the helmet shell itself, and is covered by a more flexible rubber compound providing a reduced chance of any sort of collarbone injury.
  • Patented A-Head Fitment System allows easy adjustment of the angle and height that the helmet sits on the head.
  • Ultra-ventilated helmet with 28 individual intake and exhaust ports, not including the eye port, with 18 intakes and 10 exhausts.
  • New eject technology includes the eject helmet removal system.
  • Lightweight ECE 1260g and 1310g with side pads and 1370g with visor extension.
  • The S-M10 conforms to ECE R 22.06.
  • And for rotational acceleration and oblique impact performance, where impact energy comes from an angle other than a linear 90-degree, or right-angle straight impact, the S-M10 exceeds the new ECE 22.06 Peak Rotational Acceleration standard by 76%.
  • Removable side pads made from a semi-soft polymer for added protection provide a larger contact area to help spread impact energy.
  • MIPS Multi-directional Impact Protection System.
  • ERS Emergency Visor Release and a new Visor Extension to provide protection from roost and the sun.
  •  
additional information
Brand Alpinestars
Is on Sale No
Helmet type Offroad
Helmet Series S-M10
Gender Men, Women
Riding Style Motocross/Enduro
Homologation ECE 22.06
Sharp score Not tested
Helmet material Carbon
Chin strap buckle Double-D
Interior Emergency release cheek pads, MIPS, Removable, Washable
Ventilation Multiple intake ports, Multiple exhaust ports
Helmet design Graphic
Colors Blue, Hi-Vis Yellow, Orange, Red
Color Black
Paint finish Gloss
size guide
International size Head measurement (cm)
XS 53-54
S 55-56
M 57-58
L 59-60
XL 61-62
2XL 63-64
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faq

How do I measure my helmet size?

The circumference of your head provides a good guideline for the size you need for a helmet. Use a tape measure to measure the widest circumference of your head. For most people, this point is about an inch above your eyebrows, along the junction of your ear and over the lump on the back of your head. In the size chart you will find which size fits the circumference of your head in cm.

What are the different helmet fit

All heads are different and that is why manufacturers make different helmet shapes, this can be roughly categorized into three shapes: round, oval and round-oval.

  • Round: length and width of the head are almost the same;
  • Round-oval: the length of the head is slightly greater than the width;
  • Oval: the length of the head is significantly greater than the width.

Most motorcycle helmet manufacturers provide a predominantly round-oval fit so that they can appeal to the widest possible audience. Keep in mind that the fit of a helmet is very complex and difficult to describe exactly. Small differences may therefore also be possible within these three categories!

Are sizes the same for all brands?

In general, the helmet sizes and the corresponding number of cm do overlap. If your previous old AGV was size L, chances are you also need an L for your new Nolan. But as mentioned before, there can be small differences in fit per brand and even series. That is why it can happen that the cool new helmet you've been eyeing, even when you have measured yourself well, simply wont fit well.

How do I make sure the helmet I received actually is the right fit for me.

You can check the size and fit in the following ways:

  • Keep the helmet still and then try to tilt your head back into the helmet. If the helmet is too large (in the longitudinal direction), you will hit the inner shell with your nose without too much effort. Sliding a little bit is allowed, but this should only happen with the necessary resistance.
  • Keep the helmet still and turn your head from left to right. Again, a little sliding is allowed, but with resistance. If the helmet comes off the face completely at the temples, the helmet is too big.

A good "tight" fit is what you are looking for, after all, you don't want your helmet to suddenly start shifting while riding. If you think the helmet is too small, keep in mind that the inner lining hase to be worn in a bit, and the helmet will become a bit wider when used. The cheek pads in particular usually feel quite tight in the beginning but quickly become more comfortable. The best way to determine whether a helmet has a good tight fit or simply is to small, is to keep the helmet on at home for half an hour to an hour. If you don't start to suffer from a headache or get red pressure spots, Then it's all good!

Is an ECE approved motorcycle helmet allowed in my country?

The ECE (22.05 / 22.06) standard is recognized in many countries around the world, but not all countries accept this standard for road use. It is important that your specific helmet has the correct certification for the country you are in.

  • A helmet with an ECE mark is only legal for use in Europe. In Europe it is even mandatory to ride with an ECE approved helmet. If your helmet has a different quality mark, you are not allowed to use it on European roads.
  • The United States has its own certification for helmets, namely the DOT mark. This is therefore the only quality mark that is allowed in the USA. It is possible that a helmet is both ECE and DOT approved and is therefore legal for use in both Europe and the United States.

The USA does not require helmets in every state. If you still want to wear a helmet for safety reasons, then there can in any case be no discussion about the certification of the helmet. Want to know which rules apply per state? You read it here.

Although the above quality marks are well known and widely used, there are also countries that use their own unique quality marks and only accept these. The following countries have their own certification: USA (DOT), Brazil (NBR), Japan (JIS), China (CCC).