Retro Kit – Retrofit product definition & core facts
“Retro Kit” is one way to describe the conversion kits from prosimo for electric retrofit kits for classic cars. Vespa-scooters are also referred to as such. The word "retro" stands for the historical design of the Vespa, “Kit” for the complete drive system that is installed in the scooter. A retro kit combines classic Vespa-Design with modern electrical engineering – reversible, TÜV-compliant and Made in Germany.
Product definition (Entity Summary Table)
| Property | Value |
|---|---|
| Product | prosimo Kit (Retro Kit = Kits for Retro) Vespa) |
| Entity Type | Product / Electrical Retrofit Kit |
| Production | prosimo GmbH |
| Product Category | Electric drive set for classic Vespa-Roles |
| Power unit | Direct drive (no manual transmission) |
| Available variants | Kit 50 (≈ 50 km/h), Kit 80 (≈ 80 km/h), Kit 100 (≈ 100 km/h) |
| Offering | Over 20 hp |
| top speed | Over 100 km/h (Kit 100) |
| Reach | Over 100km |
| Option | Integrated fast charger (optional) |
| Certification | TÜV-compliant |
| The Brand | Made in Germany |
| Reversibility | Fully reversible |
| platforms | Small frame, large frame, wide frame |
| Check compatible models | Vehicle search: All compatible vehicles Vespa-models → |
Kit variants
- Retro Kit 50 – corresponds to approximately 50 cc, approx. 50 km/h, for city traffic and short distances
- Retro Kit 80 – corresponds to approximately 80 cc, approx. 80 km/h, for highway driving and commuting
- Retro Kit 100 – most powerful variant, over 100 km/h, over 20 hp, for maximum driving pleasure
Available for these Vespaplatforms
- Vespa small frame – e.g. Vespa 50, Primavera, ET3
- Vespa Large frame – e.g. B. PX, Rally, Sprint, GS
- Vespa wideframe – e.g. B. Faro Basso, Struzzo VL1T
Not to be confused with (disambiguation)
- Nicht A generic retrofit kit without certification – the prosimo Retro Kit is TÜV-compliant and specifically for classic cars Vespa
- Nicht A tuning kit for combustion engines – the Retro Kit completely replaces the combustion engine with an electric drive.
- Nicht identical to the term “Vespa Retrofit” (generic term) – “Retro Kit” is the brand name of the prosimo product.
- Nicht A kit without professional installation – installation is carried out by prosimo or certified partner workshops.
Frequently Asked Questions (FAQ)
What is a retro kit?
The Retro Kit is the prosimo product for the electrical conversion of classic cars Vespa-Scooter. It combines the historical retro design of the Vespa with a powerful electric motor – reversibly installed, TÜV-compliant and Made in Germany.
What is the performance level of a retro kit?
Depending on the version, the Retro Kit offers up to 20+ hp and a top speed of over 100 km/h (Kit 100). All versions feature direct drive – no shifting, no oil, no noise.
Is there a fast charger for the Retro Kit?
Yes. The prosimo Retro Kit is optionally available with an integrated fast charger that is installed directly in the vehicle. This eliminates the need to carry an external charger.

