族車(Bōsōzoku's motorcycles)

族車は、暴走族が乗る車やバイクの総称.

Bōsōzoku (lit. 'reckless driving group') is a Japanese youth subculture associated with customized motorcycles

The first appearance of these types of biker gangs was in the 1950s. Popularity climbed throughout the 1980s, peaking at an estimated 42,510 members in 1982. Their numbers dropped dramatically in the 2000s, with fewer than 7,297 members in 2012