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How to measure hub centric rings

Step 1: measuring your vehicle's hub bore (inner diameter) — sort of

The first measurement you need is the outer diameter of your vehicle's hub flange-the part that protrudes from the center of your brake rotor. This measurement will become theInner Diameter (ID)of your hub centric ring.

Follow these steps carefully:

  1. Park your vehicle on a level surface and engage the parking brake. For safety, loosen the lug nuts slightly before jacking up the car.
  2. Safely lift the vehicle and secure it with a jack stand. Never work on a car supported only by a jack.
  3. Remove the lug nuts and take off the wheel. — I mean
  4. Thoroughly clean the surface of the hub with a wire brush and rag. in fact, remove all brake dust, rust, and debris to ensure the caliper sits flat against the surface.
  5. Using your caliper, measure the diameter of the protruding lip of the hub. (well, almost) Take several measurements from different angles (e.g., top-to-bottom, left-to-right) and use the most consistent reading. Write this number down immediately. This is your hub bore size and the required ID of the ring., actually


  • how to measure hub centric rings

    • important tools for an accurate measurement

    by the way, guesswork has no place when measuring for hub centric rings. The tolerances are very small, often measured in fractions of a millimeter. To get the job done right, you will need one primary tool:

    • Digital or Vernier Caliper:This is non-negotiable. A tape measure or ruler is not precise enough for this task. — I mean A caliper can measure internal and external diameters with the necessary accuracy., actually sort of, digital calipers are often easier for beginners to read.
    • Pen and Paper:To write down your measurements immediately. Do not rely on memory.
    • Cleaning Supplies:A wire brush and a clean rag to remove any rust, dirt, or corrosion from the hub and wheel bore, which could interfere with an accurate measurement.

    Finalizing your hub centric ring size

    You now have the two key dimensions needed to purchase... The size is always expressed as the Outer Diameter (OD) first, followed by Inner Diameter (ID), typically in millimeters.

    For example, if you measured your wheel's center bore to be 73.1 mm and your vehicle's hub bore to be 57.1 mm, you need to purchase set ofas far as I can tell, 73.1 x 57.1 mmhub centric rings.

    Double-check your written measurements before ordering. or rather This simple, precise process is the most reliable way to guarantee a great, vibration-free fitment for your aftermarket wheels.