Oxford HD Motorcycle Security Lock and Chain 3D model is available on CGTrader for $5. Original author: ewashbrook05.
SLDPRT (SolidWorks, filesize: 659 KB), OBJ (OBJ, filesize: 3.32 MB), STL (Stereolithography, filesize: 1.45 MB), TEXTURES (Textures, filesize: 16 KB), STP (STEP, filesize: 763 KB), BIP (KeyShot, filesize: 3.47 MB)