$9 MTB Disc Brake Rotor Low-poly 3D model by 3DBaKeR. Available on CGTrader with 4738 polys and 3261 vertices. Check it out on CGHub.
STL (Stereolithography, filesize: 126 KB), OBJ (OBJ, filesize: 128 KB), BLEND (Blender, filesize: 343 KB), FBX (Autodesk FBX, filesize: 479 KB), 3DS (3D Studio, filesize: 156 KB), GLTF (glTF, filesize: 873 KB), DAE (Collada, filesize: 257 KB), ABC (Alembic, filesize: 179 KB), IGE (IGES, filesize: 2.31 KB), MAX (Autodesk 3ds Max, filesize: 404 KB), DXF (DXF, filesize: 271 KB), USD (USD, filesize: 950 KB), PLY (Ply, filesize: 151 KB), TEXTURES (Textures, filesize: 6.47 MB), USDZ (USDZ, filesize: 868 KB)