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Technical · PX 125 E

The PX frame number, line by line

Where it is, what the prefix says, and why it is the first photo we ask for.

Redazione Tunnel Verde11 September 20267 min2 comments

Black Vespa PX 125 E in profile
A 1983 PX 125 E. Photo from Wikimedia Commons, see credits.

Before the mileage, before the paint, look at the frame. The number stamped into the body tells you which model the Vespa is, and it must match the registration book.

Where to find it

On large frame Vespas, the PX and its siblings, the stamp sits under the right side panel, on the body, near the rear shock mount. Take the panel off and use a torch.

On small frame Vespas, Primavera, ET3 and 50 Special, it is also on the right under the engine cowl. Either way it is photo ten of our protocol.

Line drawing of the PX in profile
The stamp is under the right side panel: in the drawing, the part called Side panels.

What the prefix says

The number starts with a prefix that identifies the model. If the prefix does not match the declared model it is not necessarily a scam: it may be a replacement frame. But it has to be asked, and written down.

ModelPrefixYears
PX 125 EVNX2T1981-1998
PX 150 EVLX1T1981-1998
PX 200 EVSX1T1981-1998
P 200 EVSX1T1977-1983
Sprint Veloce 150VLB1T1969-1979
Primavera 125VMA2T1968-1983
Primavera ET3VMB1T1976-1983
50 SpecialV5B1T1969-1983

Checking it against the papers

The number in the registration book must be identical, digit by digit. Restamping, digits of different heights or paint covering the area are signs to look into. Our Reviewer makes this comparison on every Normal listing, and an inspector repeats it in person on every Plus.

2 comments

  1. OliverLeeds · 12 September 2026

    Useful table. My PX 150 says VLX1T but the Italian papers say VLX2T: replacement frame?

    EditorsTunnel Verde editors

    It can be a transcription error at the registry, it happens. Send both photos to info@tunnelverde.it and we will tell you.

  2. GiuliaBologna · 14 September 2026

    The low torch tip is gold. With the flash I could not read a thing.

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