Troy Lee Designs Guide: Bike Helmets 101

New to the sport or new to TLD? Our wide range of helmets will see to it that cooler heads prevail with any choice you make.

Check out our guide below to see what helmet - A1, A2, Stage, D3 Fiberlite, D4 Composite, D4 Carbon - fits your line.

A1 Helmet

The Original

The A1 helmet is the perfect helmet for mountain bikers looking for action sport styling and no-nonsense functionality. The A1 is our best-selling helmet style and available in a MIPS equipped version and our original "Drone"Model.

A2 Helmets

Cooler, Faster in a Protective Package

Our A2 helmet followed up the A1's 5-star rating at Virginia Tech's safety rating with a score that put it at the top of the charts when it was tested. The A2 picks up where the A1 left off with increased ventilation and an industry first impact system using EPP and EPS impact liner that manages Low-Speed and High-Speed impacts. Comes standard MIPS rotational impact integration.


The Stage Helmet - Less Weight, More Fun

Can't decide between open face trail and a full-on Downhill helmet? A "Full Time Full Face" may be the helmet for you. A lot of helmets in this category are overly complicated, but we like simplicity, so we set out to make the lightest, most ventilated, performance driven helmet on the market and the STAGE did just that. Yeah, we developed it while racing Enduro World Series events, but it's better suited for the rest of us when we run out of talent and need to protect our noggin.

D3 Fiberlite

The Legend

No other helmet series has won more Downhill and Freeride competitions, BMX World Cups and Olympic medals than the legendary D3 helmet. Our latest creation of the D3 with a Fiberlite shell gives you proven performance for every rider type.

D4 Composite

Legend Redesigned

All-new for 2020 our highly anticipated D4 range of helmets are ready to chase another era of championships while protecting the world's fastest racers. Industry leading 24 ventilation ports, MIPS rotational impact protection, XT2® and X-Static® padding, EPP collarbone impact area just to name a few highlights. The perfect blend of Art, Science, Speed, and Style, the new D4 will once again change everything.

D4 Carbon

Legend Redesigned - Lighter

If you are looking for the helmet that sets the bar and redefines everything - the D4 TeXtreme® Carbon is that pinnacle product. Using TeXtreme® spread tow carbon shell gives you the ultimate choice for lighter weight, better rigidity, increased strength and improved impact tolerance. Additionally, Titanium d-rings and a plush Pro Series Athlete travel bag on top of all the other benchmarks in the D4 series make the TeXtreme® Carbon the ultimate protection weapon.