The Louis Garneau P-09 time trial helmet takes aerodynamics very, very seriously. The front part of the helmet is designed to have as little surface area as possible, and the dimpled surface disturbs the air just enough to increase the flow over the helmet.
The tail, which is supported internally, moves air efficiently over your shoulders. Louis Garneau also built a port into the P-09 that allows air to enter at the front, into a channel that exits just behind the ears to release any forward pressure. The vent also works with evacuation channels to improve airflow and provide cooling ventilation.
The lens system flips up and out of the way to ease entry and exit. It can be removed with just one hand. Garneau’s Spiderlock Pro II keeps the helmet in place and includes a polymer neck support the can be adjusted on the fly with the retention dial. Finally, the length and position of the straps can be adjusted with the Steplock divider, which utilizes a locking cam design.
- Minimal frontal area
- Dimpled surface
- Aerodynamic tail
- Pressure release port
- Removable lens system
- Spiderlock Pro II retention system
- Steplock divider
- Item #LGN006P
- Q & A
- Familiarity: I've used it several times
- Fit: Runs small
As a fifteen-year veteran Masters time-trialist, I now fuss over every little nuance trying to compensate for inevitable age-related losses! I had been wearing a Rudy Wingspan for the past several years and decided it was time for an upgrade. I tried a friend's Bell Javelin, which is a very nice, high-quality helmet, but for my head-down, David Millar-type body position I felt it was not optimal. When I was in a perfect position with chin up and back flat, it felt great. However, once I got fatigued or lazy and dropped my head, I could feel and hear the tail blowing around, which then just messed with my head even more!
Hence, I decided that one of the shorter tailed brands would be more appropriate. Furthermore, it seems that recent research has concluded that on average, such designs are more efficient in the real world, as most riders don't or can't maintain that perfect