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Troy Lee Designs

Troy Lee Designs D4 Composite MIPS Full Face Helmet

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SKU: 140437032

It wasn't easy for Troy Lee Designs to improve upon the class-leading design and function of the D3 helmet, but they made it happen


Built with an aerospace shell design and materials, TLD was 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 Comp 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® and XT2® anti-microbial/anti-odor padding keep the inside of the helmet a much nicer place to be.

  • 20 high-flow intake and exhaust ports for maximum ventilation
  • Added eps and new headform shape for improved impact performance
  • Full incremental sizing for greater range of fitment
  • Strategically placed interior chinbar shock pads for comfort and durability
  • Quick-release and contoured 3D cheek pads for emergency helmet removal
  • Purpose-built internal cavities for audio integration
  • Stainless steel chinstrap D-rings are light and strong
  • Exceeds bicycle certifications: CPSC 1203, CE EN 1078:2002+A1:2012 ASTM F1952-15, ASTM F2032-15, ASTM F2040-11
  • Not intended for use with motorized vehicles


  • Head Circumference: XS 53-54cm // S 55-56cm // M 57-58cm // L 58-59cm // XL 60-61cm // 2XL 62-63cm
  • In The Box: TLD Helmet Sock; Medical information sticker to insert; All the details on the D4 Carbon Helmet
  • Item #: 14043703 // 14043704 // 14000100

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