Go By Bike
Planet Earth is our home and our responsibility —we must do our part to preserve it. Learn how you can join the #GoByBike movement and help make a difference in the future of our planet and all who call it home.
Read moreCulture
Trek culture is who we are, what matters to us, and what we do as a brand. Take a look behind the scenes at Trek’s global headquarters.
Read moreProduct features
Smartshock suspended rotational system
A series of shock absorbers between the helmet shell and liner improve protection by compressing and absorbing impacts.
Helmet buyers guide
Not sure which helmet is right for you? Check out our helmet buyer's guide to learn everything you need to know about bike helmets.
See the guide| Size | S | M | L | XL |
|---|---|---|---|---|
| Circumference | 52-56cm | 56-58cm | 58-61cm | 61-64cm |
| Fit system | 2 Shell EPS System | 2 Shell EPS System | 2 Shell EPS System | 2 Shell EPS System |
| Pad material | Moisture wicking pads | Moisture wicking pads | Moisture wicking pads | Moisture wicking pads |
| Buckle type | Fidlock buckle | Fidlock buckle | Fidlock buckle | Fidlock buckle |