I spent all the week end looking at the family pictures and I discovered those two pictures of my grand father Adrien, 1870 - 1927.
Looking closely at it, it appears that they are not yet bicycles but tricycles and quadricycles. Which leads to believe that those images are from around 1890 for tricycles were invented in 1880 and pedal bicycles in 1900.
Those devices are complex, meaning odd. The tricycle with the great lateral wheel is a Rudge patent but quadricycles are Matchless patent.
Had the motorcycles existed then, no doubts my grand father would have been a biker. Watch what the gangs of bikers looked like before 20th century