Rockers

British youth subculture in the sixties and early seventies. In contrast to the Mods, who tried to stand for something new (modern), the rivaling Rockers were in certain respects more conservative.

They can be considered as the successors of the Teddy Boys, but their look was different. The Rockers bore certain resemblances to American motorcycle gangs, often driving heavy Triumph motorcycles and wearing black leather. They thought of the Mods as being "effeminate snobs" (subculturelist.com) as the latter, from the Rockers' point of view, cared too much for fashion.

Sources:

http://subcultureslist.com/mods-and-rockers/

https://www.rockabilly-rules.com/blog/mods-und-rockers-legendaere-kontrahenten/