bicycle rear wheel with gearshift chainrings and black spokes. white metal frame. macro view.

bicycle rear wheel gearshift steel spokes closeup view mechanical design engineering high racing bike detail metal frame sport recreation abstract dark background alloy black chain ring chainring chrome cleaning close-up color component components cycle equipment exercise fix fork gear gearing gearwheel hub machine macro maintenance mechanic metallic modern race repair service shop show sports teal technology teeth transport transportation white workshop chainrings disc disk brake plate round shifting cable isolated fine