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A2 Mountain Bike Helmets – troy lee designs – tld

Collection Description

The trailblazing A2 is Troy Lee Designs’ MTB trail helmet that checks all the boxes.

Its stylish shell not only incorporates huge intake and exhaust ventilation ports, it also comes with the very best in impact protection.

From breakaway visor screws, the innovative MIPS® system and an industry first dual density EPP + EPS liner that protects against both high and low speed impacts, this is a helmet that doesn’t take your safety lightly.

Add in a revised adjustable strap and X-Static® Pure Silver comfort liner for 2018 and the comfort is every bit on par with the protection.

A2 Helmets – troy lee designs – tld

Your safety is our PRIORITY.

A2 Helmet Styles
Shop A2 Decoy
Shop A2 Pinstripe
Shop A2 Superstar
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A2 Features List

A2 Features

  • Aerospace filament reinforced polycarbonate shell with MIPS.
  • 25% more airflow maximizes cooling efficiency.
  • Dual-density EPS co-molded with EPP combine to safely manage impact energy.
  • Three position adjustment at stabilizer; front and rear attachment points.
  • Semi-adjustable strap dividers create a precise fit.
  • X-Static® pure silver comfort liner delivers high performance odor protection and quick-dry moisture wicking.
  • Designed to fit with goggles or glasses.
  • Multiple eyewear docking options.
  • Three year warranty.
A2 Accessories

A2 Accessories

Shop A2 Visors
Shop A2 Headliner
Shop A2 Stabilizer
A2 Sizing Chart

Sizing Chart

Size S M/L L/XL
hat 6 3/4 – 7 7 1/8 – 7 3/8 7 1/2 – 7 7/8
cm 54 – 56 57 – 59 60 – 62
inch 21 3/8 – 22 22 3/8 – 23 1/4 23 5/8 – 24 3/8
A2 Press



  • 4.5/5 Stars – “A step forwards in terms of protection and safety features, while offering up a different, more ventilated user experience.”


  • 4.5 Stars – “Breezy and well built, the A2 is an all-rounder’s trail lid.”


  • “A remarkable open-face lid…unlikely to disappoint.”