Troy Lee Designs A1 Classic Mips Bike Helmet

$99.93 Compared to $145.00 *
Reduced Price. You save 31%
*Intermediate markdowns may have been taken.
HURRY! This item is discontinued. Shop now for best selection.
Color:Gray/glo Yellow
please select a Size
Order by 9am PT on Dec. 17 for delivery before Dec. 25. Members get free shipping! Learn More (Opens in a new window)
Choose a shipping method

When you're charging singletrack, riding dirt jumps and grinding out XC miles, the aggressive, all-mountain Troy Lee Designs A1 Classic Mips bike helmet offers cool comfort and advanced protection.

  • Features

    • Rotational motion can cause brain injuries; with Mips®, a low-friction layer slides 10 to 15 mm in all directions, reducing rotational motion to the brain during impact
    • 8 pressurized intake passages draw in cool air for maximum ventilation; rear vacuum vortex outlets help exhaust and draw heat away from your head
    • Multipurpose cam-lock adjustable stabilizer
    • Full-spectrum adjustable visor
    • Anodized aluminum hardware
    • Certified for the following standards: CPSC 1203, CE EN 1078, AS NZ 2063: 2014


    To find your size, position a tape measure just above your ears and about 1 in. above your eyebrows. Keep the tape level to measure the circumference around the largest part of your head and then find the corresponding size in the Technical specs info.
    View all Troy Lee Designs Mountain Bike Helmets
  • Technical Specs

    Best Use

    Mountain Biking

    Helmet Style

    Mountain Bike

    Helmet Construction


    Shell Material

    Polycarbonate/expanded polystyrene

    Head Circumference

    XS: 19.7-21.3 inches

    S: 21.3-22 inches

    M/L: 22-23.2 inches

    XL/XXL: 23.2-24.4 inches






    XS: Unavailable ounces

    S: Unavailable ounces

    M/L: 12.7 ounces

    XL/XXL: 13.6 ounces



  • Reviews
    88 reviews with an average rating of 4.7 out of 5 stars

    Loading Reviews...
  • Questions & Answers

    Loading Questions...