Hello, I was wanting to pick the forum's brain on a choice for helmet. This Saturday I have a duathlon with a 5k, and a hilly 17.5mi bike portion afterwards. I have a Giro Selector TT helmet, which in its day, was supposedly one of the top TT helmets. I also have a Bell star Pro, which is supposedly one of the best aero road helmets. I would usually wear the selector, since I assume a good TT helmet is better than a good road helmet, but these things are causing me to hesitate:
1. The high on Saturday is 85 degrees, which is quite hot for a fully enclosed TT helmet.
2. There is a chance of rain. I think having an easily removable visor (Bell Star) might be nice if it rained
3. Transition time--The bell goes on much faster. How much time would I save with the Giro over the course of the ride to make up with taking maybe 5-10 seconds longer.
Other information-The course is very hilly. I think it is somewhere around 1300ft of climbing for 17.5 miles. It has rollers and a couple steep puncheurs, and one longer sweeping. I will be on a road bike with clip on bars, and in previous years, I have averaged just shy of 22mph. My position is good, but I a don't race tons, so I might put my head down more often than I realize, even though I am concentrating on not doing so. I would be much more comfortable with the Bell, but if you guys think I would be lots faster with the Giro, I am willing to sacrifice some comfort for speed.
Thanks!
1. The high on Saturday is 85 degrees, which is quite hot for a fully enclosed TT helmet.
2. There is a chance of rain. I think having an easily removable visor (Bell Star) might be nice if it rained
3. Transition time--The bell goes on much faster. How much time would I save with the Giro over the course of the ride to make up with taking maybe 5-10 seconds longer.
Other information-The course is very hilly. I think it is somewhere around 1300ft of climbing for 17.5 miles. It has rollers and a couple steep puncheurs, and one longer sweeping. I will be on a road bike with clip on bars, and in previous years, I have averaged just shy of 22mph. My position is good, but I a don't race tons, so I might put my head down more often than I realize, even though I am concentrating on not doing so. I would be much more comfortable with the Bell, but if you guys think I would be lots faster with the Giro, I am willing to sacrifice some comfort for speed.
Thanks!