Troy Lee Designs A3 Mountain Bike Helmet with MIPS | Premium MTB Trail Helmet
Ride with confidence and elite-level protection in the Troy Lee Designs A3 Mountain Bike Helmet with MIPS, the latest evolution in high-performance MTB trail helmets. Built on the success of the acclaimed A2, the A3 delivers next-generation safety, comfort, and coverage for aggressive trail, enduro, and all-mountain riding.
- Troy Lee Designs A3 MTB helmet with MIPS rotational impact protection
- EPS + EPP dual-density foam for high and low-speed impact absorption
- Extended lower coverage for enhanced trail protection
- 16 ventilation ports with internal airflow channeling
- Adjustable magnetic visor with goggle storage system
- V2 Fidlock magnetic buckle for fast and secure fastening
- V3 precision fit system with 3-position height adjustment
- Lightweight design (~375g) for all-day comfort
- Antimicrobial, quick-dry removable liner with Sweatglide system
Advanced MIPS MTB Helmet Protection
The TLD A3 helmet with MIPS technology is engineered for superior impact protection, helping reduce rotational forces during crashes. Constructed using a combination of EPS and EPP dual-density foam, it provides balanced protection for both high-speed and low-speed impacts, making it one of the most advanced mountain bike helmets with MIPS available today.
Enhanced lower head coverage offers increased protection compared to previous Troy Lee Designs helmets, ensuring maximum rider confidence on technical terrain.
Premium Trail Helmet Design & Fit
Every detail of the A3 has been meticulously engineered for performance. The TLD V3 precision fit system offers three levels of vertical adjustment, delivering a customised and secure fit. At approximately 375g, this lightweight MTB helmet provides comfort without compromising protection.
The V2 Fidlock magnetic buckle system allows for quick, secure fastening and easy one-handed operation, ideal for trail and enduro riding.
Optimised Ventilation & Comfort
Featuring 16 strategically placed ventilation ports, the A3 helmet uses advanced internal channeling to maximise airflow and keep riders cool during intense climbs and long descents. The two-piece antimicrobial, quick-dry liner and removable Sweatglide system ensure long-lasting comfort and hygiene.
Functional, Rider-Focused Features
Designed with real-world trail riding in mind, the A3 includes an adjustable visor with magnetic positioning and integrated goggle storage, allowing seamless transitions between eyewear setups. The visor is secured using smart shear screws, reducing damage in the event of a crash.
The helmet is also fully compatible with a wide range of eyewear, making it a versatile choice for all mountain bikers.