12-inch numbers + night-race requirements
24 Hours of Lemons
Number & placement guide
Lemons calls for at least 12-inch numbers on both sides and the hood or roof. Night races require self-illuminated numbers, including the hood/roof number.
24 Hours of Lemons
at a glance.
Dimensions below refer to the actual character, not the outside panel. Consult the linked official text for the complete provisions.
| Detail | What to plan for |
|---|---|
| Contrast | Plan black numbers on white or white numbers on black. |
| Night races | Backlit plates or suitable LED rope lighting are allowed; external spotlights are not the required self-illumination. |
Source: 2026 rules · §§3.10.4, 3.10.11.3.2. The full rule and your event supplements take precedence over this summary.
PLAN THE WHOLE CAR
Every position.
Accounted for.
Measure a clear area at each location before settling on a layout. A door handle, body crease, trim strip, or small front/rear area can change the available footprint.
Position reference: 2026 rules · §§3.10.4, 3.10.11.3.2. For magnetic placement limitations, read Magnum’s installation guidance.
12-inch number
12-inch number
12-inch number · Confirm orientation and usable area.
Position list is a planning diagram, not an inspected installation or a scale drawing.
Your exact event belongs in the review.
Printed reflective vinyl alone does not satisfy the 2026 self-illumination rule. Specify whether the event runs at night; electrical illumination needs a separate solution.
Before a production proof
- Check your registered number and any class or run-group identifier.
- Confirm current event requirements and required official decals.
- Measure clear width and height on the actual car.
- Record the finish and check the selected attachment material.
We check the actual characters, stroke widths, positions and supplied fit measurements on the production proof. The on-screen car illustration does not complete those checks.
A few useful answers.
Can I order if I do not have the complete rulebook?
Yes. Send the event registration link and what you know. We will research the identification requirements and keep the request open until the missing details are resolved. Printing starts only after the quote and production proof are approved. Official reference ↗
Can a magnetic kit work on every car?
No. It needs a suitable magnetic surface and full contact; aluminum, fiberglass, and carbon-fiber panels are not suitable magnetic substrates. Check the actual mounting area and finish. Magnum care and application guidance · Our material guide.
Does this include a guarantee of event compliance?
Our Race Ready service checks number-graphics requirements and provides a correction promise for our documented work. The organizer retains final approval; graphics do not certify vehicle classification, equipment or technical inspection. See our service terms.
Your number, with a plan.
Send your event, car and registered number for a complete graphics quote.