D4 Carbon Mips Helmet Cyclops

What Our Gearhead® Experts Are Saying:

"I have been running the D4 Carbon MIPS Helmet Cyclops on bike park laps and steep technical descents all season, and the carbon shell keeps the weight down in a way you genuinely feel over a long day of hard riding. The emergency release cheek pads are a detail I hope to never need, but knowing they are there adds real peace of mind when the consequence of a crash is high."

There are helmets built for trail riding, and then there are helmets built for the moments when the stakes are highest. The Troy Lee Designs D4 Carbon MIPS Helmet Cyclops belongs firmly in the second category. This is the full-face lid that has been on the head of downhill podium finishers and BMX racers across the globe, and every detail of its construction reflects that level of intent.

The carbon fiber shell keeps the claimed weight at 1000 grams without compromising the structural integrity that a full-face demands, and the MIPS C2 rotational protection system works within that shell to manage the rotational energy that straight-line impact ratings alone do not address. The anatomical 3D contoured cheek pads feature an emergency release system designed for EMS responders, a standard in premium full-face construction that speaks to how seriously Troy Lee takes the consequences of a real crash. Sixteen vents channel airflow through the shell on the way down, and the titanium D-ring buckle and smart shear visor screws round out a helmet that is engineered from the inside out for the most demanding disciplines in the sport.