metal parts of the bike-chain, rear cassette, switch, brakes, gear levers on the background of blurred grass. a sprocket on a bicy

alloy background bicycle bike bikechain black blurred brakes cassette chain close cogwheel color component cycle detail drive electric equipment fitness frame gear gearbox gearwheel grass green horizontal image iron levers lifestyle link machine macro maintenance metal modern motor mountain nature object old part parts photography race rear repair shiny silver speed spoke sport sprocket steel strong switch technology tooth transmission transport transportation turn vehicle wheel