Bicycles in the parking area

Rental bicycles Mobike in the bicycle parking.
The model has three bicycles and four parking racks.
Each bike is attached into a separate mesh. All models have an subdivision modifier applied in render iteration mode (1 iteration). In FBX files, models without subdivision.
The model uses two materials (bike and rack) and seven textures in JPG format.
Just in case, a bicycle model (max VRay and FBX) has been added to the archive in the default position, in which it is possible to rotate the moving parts in local mode.
VRay version: 3.6
Corona version: 1.6
Polycount of all models: 58K (before subdivision)
One bicycle consists of approximately 19K polygons.