noun
coaster brake; back pedal brake; foot brake
A bicycle brake activated by pedaling backward; common on city bikes and children's bikes.
この自転車にはコースターブレーキが付いている。
This bicycle has a coaster brake.
コースターブレーキはペダルを逆に踏むと効く。
The coaster brake works when you pedal backward.
Variant with interpunct; less common in running text.
Loanword from English 'coaster brake'.