How do professional bicycle riders reduce friction? name two ways.

To reduce friction means to make yourself more aerodynamic. One way to do this is so completely shave your body hair. This is what swimmers also do and although it's minor it can actually reduce friction. Another way is to use aerodynamic gear such as helmets that are pointed instead of just circular because this reduces friction since the point breaks the air.

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1. aspect is nothing really because the answer is right in front of your face