The Troy Lee Designs A1 MIPS Helmet offers unrivalled all-mountain protection – utilising industry-leading safety standards so you can ride the trails without compromise.

• Developed and refined explicitly to provide the very best impact protection, the A1 MIPS Helmet means that you’re always ready to enjoy the trails. An innovative Multiple-Impact Protection System and EPS liner give outstanding protection against angled impacts. If you’re looking for the ultimate, fully-optimised trail helmet then look no further.
• The Multiple Impact Protection System utilised in the A1 MIPS is an industry-leading and rigorously tested protection system that is the result of a dedicated mission to reduce strain on the brain in angled impacts. The technology employed in MIPS enables rotation of the head relative to the helmet structure upon impact, demonstrably reducing the detrimental effects of impact to the head. If you value maximal safety, then MIPS is the way to go.
• The A1 MIPS is constructed from a reinforced polycarbonate shell, integrated with an expanding polystyrene liner which is the result of a singular drive for safety on impact. An innovative design ensures that it remains lightweight and ventilated with a 16-port airflow system which enables air to be drawn across the head, keeping you cool on the trails.
• Fully adjustable cam-lock strap dividers mean that you can contour the helmet to fit your own head and maximise comfort and protection on every ride.
• With a three-year warranty on all TLD helmets and a variety of striking colourways you can be confident that you’re investing in an industry-leading lid.

Features

• Multi-Directional Impact Protection System protection against angled impacts
• EPS impact liner maximizes impact protection while minimizing weight
• Aerospace filament-reinforced shell
• 16-port ventilation system for optimised cooling
• Quick-dry comfort liner is both removable and washable for long-term comfort
• Specialised cam-lock strap dividers adjustable for different head shapes and riding styles
• 3-year warranty

What is Mips Technology?

Mips® Safety System

The Mips safety system is designed to add protection against the rotational motion (or kinematics) transmitted to the brain from angled impacts to the head. Rotational motion is a combination of rotational energy (angular velocity) and rotational forces from angular acceleration that both affect the brain and increases the risk for minor and severe brain injuries. Mips’ added protection system has been proven to reduce the rotational motion when implemented in a helmet by absorbing and redirecting energies and forces otherwise transmitted to the brain. Read More

Mips safety system functionality

We know from scientific research that the brain is particularly senstivie to rotation. In the event of an impact, the helmet technology provided by a Mips® safety system is intended to help reduce the impact of rotational energy to the head by enabling a relative movement between the head and helmet.

When such an impact occurs the forces the build up between the head and helmet are immense. These forces can be compared to the weight of up to 10 people sudddenly standing on your helmet. Under such high pressure, the friction between head and helmet makes it hard for the helmet to move– even if the straps are slightly loose or if the helmet doesn’t have a properly secure fit as recommended by the manufacturer. But a Mips® low-friction layer inside a helmet can still allow omni-directional movement of 10-15mm when that high load occurs.

Energy redirection

Most helmets that are certified by industry-accepted safety standards are capable of reducing the energy of a straight, linear impact. But when it comes to angled impacts, which is the most common type of impact from crashes or falls, a Mips® safety system-equipped helmet can also help reduce harmful rotational energy.

Think about a fall on a slippery slope: If you fall and hit your head (or helmet), you will most likely continue in the same direction as before the fall. Alternatively, consider a similar fall on high-friction asphalt– a very different scenario. When your helmet hits the ground, there will most likely be a sudden stop and a rotation of the helmet. Mips intends to redirect that energy away from the head.

Size Chart

• XS: 48-54 cm
• S: 54-56 cm
• M/L: 57-59 cm
• XL/XXL: 60-62 cm