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Home >> Volkswagen >> 2018 >> Beetle S, 2D Hatchback >> Repair and Diagnosis >> External Pages >> Different car >> Section 114 (Wheel & Tire Guide (Hatchback) (1 Of 2)) >> 44 Wheels, Tires, Wheel Alignment >> General Information >> Disc Wheels >> Disc Wheel Structure

Disc Wheel Structure

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Fig 1: Identifying Disc Wheel Structure
GWWN44-10340Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.
  1. Rim Flange 
    • Stop for the side tire bead
  2. Hump (H2) on Both Bead Seats 
    • Prevents the tire from slipping off the bead seat when driving around tight curves.
    • An extended hump (EH2) is required when using run-flat tires. Refer to DISC WHEELS, IDENTIFICATION .
  3. Bed 
    • Makes it easier to mount the tire.
  4. A - Rim Width 
    • Distance between the tire contact surfaces on both rim flanges.
    • Dimensions in inches.
  5. B - Rim Diameter 
    • Distance between the rim contact surfaces on the opposite tire shoulders.
    • Dimensions in inches.
  6. C - Offset 
    • Distance between the vertical wheel center and the inner wheel contact surface.
    • Dimensions in mm.
  7. D - Pitch Circle Diameter 
    • Circle diameter where the wheel bolt holes are located.
    • Dimensions in mm.
  8. E - Center Hole 
    • Enables centering.
    • Dimensions in mm.
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