The 17 x 9 inch black alloy wheels with the specifications "PCD 6x139.7," "ET 0mm offset," and "CB 110" are described as follows:
 
 
Size (17 x 9 inch):
 
 
Diameter: The wheel has a diameter of 17 inches.
 
Width: The wheel is 9 inches wide.
 
This size is often suitable for trucks, SUVs, and off-road vehicles, providing better traction and aesthetics.
 
 
 
 
PCD (Pitch Circle Diameter 6x139.7):
 
 
The PCD refers to the bolt pattern of the wheel. In this case, it is a 6-bolt pattern with the bolts spaced at 139.7 mm apart, which is common for many off-road and 4x4 vehicles.
 
The PCD 6x139.7 is popular in vehicles such as certain models of Toyota, Nissan, and Jeep.
 
 
 
 
ET (Offset 0mm):
 
 
The ET (Offset) describes the position of the wheel hub relative to the centerline of the wheel. A 0mm offset means the wheel's centerline is in the same plane as the mounting surface (the part that attaches to the vehicle).
 
This offset is generally used for vehicles requiring a flush or slightly extended stance, making it good for off-road or custom applications.
 
 
 
 
CB (Center Bore 110mm):
 
 
The Center Bore (CB) is the diameter of the hole in the middle of the wheel that fits over the hub of the vehicle. The 110mm center bore size means this wheel is designed to fit vehicles with a 110mm hub diameter. If the vehicle’s hub size is smaller, hub centering rings may be used to adapt it.
 
 
     Summary:
 
Wheel size: 17x9 inches (diameter x width).
 
PCD: 6x139.7 (6 bolt holes, spaced 139.7 mm apart).
 
ET (Offset): 0mm (centerline of the wheel is flush with the mounting surface).
 
CB (Center Bore): 110mm (hub bore size).
This wheel specification is typically used for off-road vehicles, trucks, and SUVs that need robust performance and a wider stance.