the rear derailleur of the bike is broken, no wheel. close-up, on a white background

bicycle bicycling bike bmx cassette chain closeup cycling derailleur equipment gear gearshift giant handlebar hybrid idler indoor ladies liv lower machine manufacturing metal metallic mosh mountain nrw part rear recreation ring road rs3 safety shimano sport sprocket tarmac technology tracks transport transportation trekking tricycles unicycles vehicles wandering weekday weekend wheel wheeled white