Support

Measurement Guide

Measure once. Choose the correct path below — standard hardware or custom-built kits.

Standard hardware Custom kits & aerodiscs
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Standard hardware

Use this path for ready-to-buy items available in our store (nuts, caps, tools).

Go to Standard →
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Custom kits & aerodiscs

Use this path for custom-built kits and aerodiscs. Measurements are required before we can design your setup.

Go to Custom →

Check center nut thread size (BBS-compatible wheels)

Use this guide if you are installing MG Centerlock hardware on wheels designed for BBS-style center nuts. This measurement applies only to:

  • BBS-compatible center nuts
  • MG Centerlock systems with 58 mm or 71 mm thread sizes
It does not apply to custom kits, aerodiscs, or bespoke configurations.

Option 1

Use calipers or a depth gauge to measure the mounting depth precisely in millimeters.

  • Remove the center cap (if applicable).
  • Measure the depth at 3 points and note the smallest value.
  • Take a clear photo of the measurement.
Checklist
  • Wheel removed (or safely accessible)
  • Result in mm
  • Clear photo of caliper reading
Start fitment check

Send measurements and clear photos — we reply with exact fitment guidance.

Custom kits & aerodiscs

Custom MG Centerlock kits and aerodiscs are engineered per wheel. Choose your style, take measurements, then send a fitment check so we can confirm feasibility and prepare your setup.

Centerlock Kit V1 | V2 | V5

Classic motorsport look — engineered to your wheel measurements.

Aerodisc

Classic motorsport look — engineered to your wheel measurements.

How to proceed

Pick a measurement method below and send your results with photos. Our technical team will advise the best solution for your wheels.

Start fitment check

Custom projects require measurements. We’ll confirm if your setup is possible and propose the right solution.

Custom kits & aerodiscs — how it works

Custom Centerlock Kits and Aerodiscs are made to order. Because many wheel setups don’t have fixed specifications, we need your measurements to design a kit that fits correctly.

  1. Step 1 — Choose your style
    Decide what you want to build: Centerlock Kit, Custom Center Caps or Aerodiscs. Save inspiration photos if you have a specific look in mind.
  2. Step 2 — Measure your wheel
    Measure center bore diameter, mounting depth and available clearance. These values allow us to design the hardware geometry.
  3. Step 3 — Submit Fitment Check
    Send us your measurements together with wheel model, size and vehicle details. Photos are strongly recommended.
  4. Step 4 — Technical confirmation
    Our engineers verify compatibility and confirm whether we can build your setup. If everything fits — we prepare your custom kit.

Custom builds require manual verification. Production starts only after fitment approval.

Start Fitment Check →