Should I use an Aero Helmet?

Do you have more than 1 bike helmet? Are you one of those cycling enthusiasts with a helmet for each cycling discipline?

I have only 2 helmets. One for road cycling and the other for time trials or triathlons. When new to the sport of triathlon, it can be confusing as to whether to buy another Aero helmet or to just stick to your road helmet during races.

I have come across an article to shed some light into the issue.

Issues regarding use of AERO Helmets.

1. Aerodynamics. This translates to time saved during the cycling leg or time trial course. This depends on factors like shape of the helmet and position of the helmet tail on your middle back. Lesser space in between your middle back and the helmet tail will equate to better aerodynamics thus increasing your time savings. This is a rough estimate of time savings just by using an Aero Helmet.

a) Sprint distance: 15-30 seconds

b) Olympic distance: 30-60 seconds

c) Half-Ironman: 1.5-2.5 minutes

d) Ironman: 3-5 minutes

2. Heat. Aero helmets have lesser cooling vents to maximize aerodynamics. Unless you are racing in very hot environments for long hours, these will not affect your performance. As long as the body is kept ventilated during your ride, the restricted cooling of your head should not be an issue. If it is too uncomfortable, change to an aero helmet with cooling ports. 

2. Cost. Aero helmets tend to be more expensive than regular road helmets. If you are on a tight budget, stick with the road helmet for general use. 

Remember that using aero helmets can only be of benefit if used properly. Try not to look down or to your sides very often as this can cause you to lose aerodynamics very quickly. Find a head position with less helmet noise or turbulence to maximize aerodynamics. Try to tuck in your head (turtling) during the ride to maximize the aero position.  Imagine pushing your chin down towards your front hubs to tuck in your head. If your aero helmet has a long tail, try to feel the tail touch your middle back to minimize the space between the helmet tail and your middle back. 

Hope this helps. Good luck!