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02 Name of each of the parts

Name of each of the parts of the wheel

P.C.D

Location for the assembly of nuts or bolts when attaching the wheel with the diameter of imaginary circle that connects the central point of each of the holes

H.D

Section that connects the wheel to the axle of the front-wheel drive and rear-wheel drive, and coincides with the diameter of the axle

OFF SET

Distance from the imaginary central line of the width of the rim to surface at which the wheel is assembled onto the axle. If it is small or minus, the wheel may protrude out of the body of the vehicle (which is in infringement of the law).

Explanations on the key sections

  • RIM : Section onto which the tire is attached and maintains the tire in place. The inside of the automobile is referred to the Inner Rim while the exterior portion is referred to as the Outer Rim.
  • Disk : Disc shaped section that makes up the central portion of the wheel, and is composed of the design surface and hole for the attachment of the wheel
Product No. Name Product No. Name
P.C.D (Pitch Circle Diameter) H.D (Hub hole Diameter)
OFF SET BSD (Back-Setting Diameter)
Bolt hole Bolt hole Diameter
Rim Width Outer Hump
Inner Hump Rim Diameter
Inner Rim Outer Rim
Spoke Center Line

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