What is a TT helmet?
A key component in any time-trial tester or triathlete’s kit is the helmet atop their head. It’s the leading edge in the fight against aerodynamic drag.
Do you need aero helmet for Ironman?
The short answer is no. And that’s partly because what an aero helmet is considered to be has changed. It’s no longer a simple choice between vented, ‘brick wall’ helmets or super-slick, ‘long-tail’ time-trial options.
How many watts does a TT helmet save?
11.5 watts
Feel the Need for Cycling Speed? This Chart Will Help You Ride Faster
| UPGRADE | COMPARED TO | ESTIMATED POWER SAVINGS1 |
|---|---|---|
| Time Trial Helmet | Standard road helmet | 11.5 watts |
| Shaved Legs | Unshaved legs | 10 watts |
| 3-Spoke Wheel (back wheel, 0 yaw) | Disk wheel (back wheel, 0 yaw) | 5 watts |
| Road Aero Helmet | Standard road helmet | 3.5 watts |
Which aero helmet is fastest?
Specialized S-Works Evade II
Specialized S-Works Evade II Developed in their own wind tunnel, dubbed the Win Tunnel, Specialized claims this is the fastest helmet it’s ever tested.
How much time does a TT helmet save?
Feel the Need for Cycling Speed? This Chart Will Help You Ride Faster
| UPGRADE | COMPARED TO | TIME SAVED |
|---|---|---|
| Time Trial Helmet | Standard road helmet | 67 seconds |
| Shaved Legs | Unshaved legs | 50+ seconds |
| 3-Spoke Wheel (back wheel, 0 yaw) | Disk wheel (back wheel, 0 yaw) | 29 seconds |
| Road Aero Helmet | Standard road helmet | 21 seconds |
What helmet do triathletes wear?
The Louis Garneau has been a popular choice among time trialists and triathletes for its performance per dollar ratio. Based around a mid-tail design, it should mesh with a lot of positions, but is tilted more towards those who can tuck their head.
Is no helmet more aero?
Bare head had similar air resistance to aero helmets at low yaw angles and the lowest resistance at large angles. The paper’s conclusion is that for helmets (or bare head) that do not have huge number of vents, cross sectional area has more effect than the shape of the head or helmet.