Troy Lee Designs D4 Composite Helmet w/Mips - Royalty 2026specspringsale Made from wool and featuring

Made from wool and featuring trail-specific cushion at the heel

Trek Factory DH Team riders

Optimized for DH Performance

You just want parts that can take a beating and won't let you down - the Chester 35 bar is made for you

aerodynamic position

Troy Lee Designs D4 Composite Helmet w/Mips - Royalty 2026specspringsale Made from wool and featuringAlways 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 side mesh keeping your head cooler during the ride. X static