Originally Posted by
aplcr0331
I could really tell the difference in wind noise going down the hill. It was striking in that manner. No clue if it made me "faster".
So interestingly, there was a study a long time ago which claimed that they found wind noise tends to reduce performance - apparently and paraphrasing, it makes your brain think you are working harder than you are, and you have a natural tendency to ease down. They claimed that shutting out the wind noise enabled a rider to put out a little more power.