Troy Lee Designs D4 Composite Stealth MIPS Adult MTB Helmets Harley-Davidson FLHXSE CVO Street Glide 2015 Parts Extensive technical stretch panels under

Extensive technical stretch panels under arms

Alpinestars waterproof Drystar Performance sealed triple layer construction for a highly reduced material construction to promote dexterity and sensitivity

Matte Gunmetal / Gray

the Liberty exceeds off-road standards and has the superb tread wear you expect from a Maxxis tire

Hollow kingpin and axle reduce weight

Troy Lee Designs D4 Composite Stealth MIPS Adult MTB Helmets Harley-Davidson FLHXSE CVO Street Glide 2015 Parts Extensive technical stretch panels underTroy Lee Designs D4 Composite Stealth MIPS Adult MTB Helmets Always Evolving. Built with an aerospace shell design and materials, we were able to get the D4 Composite helmet to 1050 grams without sacrificing any strength. Mips C2 protection system is used to add an additional layer of safety in the event of a fall. For comfort, the D4 Composite routes cooling air through a front air intake system that flows through the polymer center and power grid