A3 Mips Helmet Cyclops

What Our Gearhead® Experts Are Saying:

"I put the A3 Mips Helmet Cyclops through a full enduro season, and the MIPS B32 integration is a meaningful advancement over older MIPS implementations because it sits inside the retention system rather than floating independently. The co-molded EPP and EPS liner combination delivers serious impact performance, and the smart shear visor screws break away cleanly on impact rather than transferring force to the shell."

For riders who take trail and enduro riding seriously, helmet selection is a technical decision as much as a comfort one. The Troy Lee Designs A3 Mips Helmet Cyclops is built around a co-molded EPP and EPS liner construction that combines the progressive crush characteristics of EPS with the rebound and multi-impact resilience of EPP, giving you a liner system that performs across the range of impacts common in aggressive trail and enduro riding.

The MIPS B32 rotational protection system represents a significant refinement over earlier MIPS implementations. Rather than a separate floating layer, the B32 is integrated directly into the 360-degree micro ratchet retention system, eliminating the looseness that plagued older designs while maintaining the rotational energy management that makes Mips protection meaningful. The 3-piece advanced layer PC shell distributes impact forces across a wider area than a single-piece shell, and the smart shear breakaway visor screws are engineered to release under crash forces rather than transmitting that energy into the shell and liner.

Sixteen vents are channeled and tuned to the geometry of the helmet, working with the internal airflow pathways rather than simply punching holes in coverage. The 3-Way Magnajust visor system accommodates goggles with wide range optic fitment and genuine stowage capability, making the A3 a legitimate goggle-compatible option for variable conditions without compromising the visor's trail functionality. The 3D Fidlock magnetic buckle closes and releases reliably with one hand, and the V2 micro side adjust strap dividers allow precise cheek and jaw positioning that stays put over a long descent.

The customizable 2-piece Ionic comfort liner is antimicrobial and quick-drying, and Troy Lee includes a spare liner plus two Sweat Glide System inserts in the box, making the A3 Mips Helmet Cyclops an unusually complete package for riders who log serious miles across MTB, enduro, and trail disciplines.