Wearing tight jeans or leather pants, as motorcycle riders do, can decrease sperm count. The pants don't allow the scrotum to move the testicles away from the body when they get too warm. Allowing the testicles to get too warm for too long will cause the sperm to die off.
A man, while riding, especially off-roads, receives hits on his testicles even from small bumps. All those knocks result in a kind of continuated pressure, a particular injury that can affect human sperm production.
Sperm counting is not affected by riding motorcycles. Sperm is only harmed when certain chemicals (such as alcohol or drugs) or large amounts of radiation are near the genitals.
In my opinion riding a motorcycles is dangerous if you don't know how to ride it,form the other side is a nice experience and and a lot of adrenaline ,ones you get use to it you will not wanted to go back to a car. About the sperm count is a big problem for the new generation.
