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How to Identify Momo Horn Buttons

The word “Momo” on the back alone is not sufficient proof of authenticity.

by Mads – April 10, 2026

 

Momo Niki Lauda Helmet Horn Button - Back

At first glance, many Momo horn buttons look similar.

But once you start comparing details — especially on the back — the differences become clear. Materials, construction and small design elements reveal far more than the logo on the front.

This guide focuses on the key characteristics that help distinguish original Momo horn buttons from later versions and reproductions.

Two Main Generations

Vintage Momo horn buttons can be grouped into two main phases:

  • early versions with a chrome ring
  • later versions with a black plastic ring

This transition took place around the mid-1970s and marks a clear visual and construction difference.

early Momo Alpina horn button
Momo Alpina horn button for sale

Front Details

The front is often the first reference point — but not always the most reliable one.

Typical elements include:

  • clean and well-defined logos
  • balanced proportions
  • high-quality finish

On original pieces, colors and printing tend to be precise and consistent. 

However, good reproductions can look very similar from the front, which makes it necessary to look further.

And always make sure the logo generation fits the button generation.

The Back Tells the Story

The most reliable way to identify a Momo horn button is the back.

However, some counterfeit horn buttons are fitted into original housings.

Original pieces show:

  • clean, well-defined construction
  • consistent material quality
  • correct connector layout

Depending on the generation, you will typically find a single central contact or a clearly integrated connector system.

Two legit Momo Horn Button Designs (First & Second Generation)

Horn Button Back

In the 1980s, Momo began to add a production date to the Horn Buttons as well. The pictured one has been made in September of 1992.

Reproductions often differ in subtle but noticeable ways.

  • simplified construction
  • incorrect or additional connectors
  • visible screws or loose wiring

These differences are often easier to spot than anything on the front.

Two cheap examples:

Context Matters

Originality is not only about the part itself, but also about context.

A horn button should match:

  • the steering wheel
  • the production period
  • known design variations

If something feels out of place, it’s worth taking a closer look.

Final Thoughts

Identifying Momo horn buttons is about details.

The front may catch your attention — but the back confirms what you’re looking at.

With a bit of experience and careful comparison, it becomes easier to separate original pieces from later reproductions.

Not sure about a specific horn button?
Feel free to reach out — a second opinion can often make things clear quickly.

More to discover

Momo Horn Buttons – Models, Generations & Variations.


Horn Button Guide – Small in size, but essential.
The (Small) World Of Fake Horn Buttons.
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