bicycle chain close-up. metal parts of the bike-chain, rear cassette, switch, brakes, gear levers on the background of blurred gra

alloy background bicycle bike bikechain black blurred blurry brakes cassette chain close color component connected cycle depth detail disc drive equipment field fitness frame gear gearwheel grass horizontal image industrial iron levers lifestyle link machine macro maintenance mechanism metal modern mountain object old part parts photography race rear repair shiny silver small speed spin spoke sport steel strong switch technology tooth transmission transportation vehicle wheel