Hi !!
Last adjustements before season starting.. I think I achieved to find a relatively good position on my tri bike. I can apply power, and it seems that i'm not bad in aero. But, when putting on my helmet (briko cronometro), it seems that I have a huge gap between my back and the back of the helmet. Do my head still too high ? How can I lower it more ? Or do my helmet is not the good choice ?

I'll try to post a picture with my helmet put on, but basically the tip of the helmet keep in the air.
Thanks