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Troy Lee Designs
A3 Mips Helmet

5 out of 5 stars
7 Reviews
$149.50 - $249.99
Up to 35% off
Color:Dark Blue/Burgundy


Size Chart


Why We Like The A3 MIPS Helmet

Even if you know the twists and turns of the trail like the back of your hand, your noggin still deserves reliable protection against unexpected falls and impacts. To cover your cranium for those all-mountain adventures, throw on the Troy Lee Designs A3 MIPS Helmet. Its polycarbonate shell is designed to act as the initial barrier when charging trails, and underlying EPS foam absorbs impact through every fall. The A3 offers additional coverage along the temples and base of your head than its smaller sibling, the A2, but doesn't go overboard with chin bars that are better-suited for the bike park. MIPS technology repositions the helmet to soak up angled impacts, and a ventilated shell keeps you cool on hot summer rides. To protect your eyes from debris and glare, the A3 employs a three-position adjustable visor that our riders applaud for its ability to break cleanly from the helmet through a fall, reducing impact forces if you don't happen to stick the landing.


  • A ventilated all-mountain helmet for confident control in the saddle
  • Rugged in-mold construction absorbs blows and impacts
  • Ventilated shell boosts airflow as your ride heats up
  • Positioned foam wicks sweat to enhance comfort and fight odor
  • Additional coverage along the temples and base increases protection
  • Retention fit system dials in the perfect, customized fit
  • Adjustable visor shields against dirt, debris, and glare
  • Item #TLDY0H8
enduro, trail
Audio Compatible
Complies with U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older, CE EN 1078, AS NZ 2063: 2020
Fit Adjustment
rear-stabilizer fit system
16 vents
Manufacturer Warranty
1 year
Claimed Weight
13.2oz (375g)
Shell Material