Bicycle Helmet
Cyclists in the late nineteenth century pioneered the concept of protective headgear for cycling, but it wasn't until 1975 that designers at Bell Helmets created what we think of today as the modern bicycle helmet.
In the 1880s, high-wheel bicycle riders in Victorian cycling clubs began wearing pith helmets made from dried sola plant heartwood to cushion falls from tall machinery. By the turn of the twentieth century, European road racers replaced brittle pith with leather hairnets, which consisted of longitudinal strips of leather-encased padding arranged in an open ring. These minimalist caps offered minimal blunt impact resistance and were primarily designed to protect riders against abrasions and road rash during track spills.
During the 1970s cycling boom, riders increasingly faced motor vehicle traffic, prompting the California safety equipment company Bell Helmets to design dedicated cycling headgear under founder Roy Richter. Engineer Lester R. Lewicki developed a design featuring a rigid Lexan plastic shell bonded to an expanded polystyrene liner with molded intake channels, documented in U.S. Patent 3,925,821. Released in 1975 as the Bell Biker, this model became the first commercially viable hard-shell helmet built specifically to absorb major impact energy on the road.
Helmets transitioned to lightweight aerodynamic designs in 1986 when industrial designer Jim Gentes introduced the Giro Prolight, replacing heavy rigid covers with bare expanded polystyrene encased in Lycra. Later developments integrated micro-thin polycarbonate outer skins directly onto molded foam and introduced slip-plane liners to mitigate rotational forces during angled impacts. These materials transformed cumbersome motorsport derivatives into standard safety gear worldwide.
The bicycle helmet evolved from Victorian pith hats and leather strips into an engineered foam shield that redefined personal road safety.