1973 Power-Dyne Vehicles, Inc. Stock Certificate (PDV) — Rare Motorcycle History
A Vintage PDV Document From the Early 1970s
Step into off-road history with this very scarce 1973 Power-Dyne Vehicles, Inc. stock certificate.
Produced during the brand’s brief run, PDV is remembered for compact off-road bikes and rare motocross-era models,
especially the PDV Gringo.
Power-Dyne Vehicles (PDV): Small Bikes, Big Reputation
Power-Dyne Vehicles, Inc. (PDV) was a short-lived motorcycle manufacturer from the early 1970s.
The company started with minibikes and street bikes before pushing into larger off-road machines.
The PDV Gringo: PDV’s Most Notable Build
The standout model was the PDV Gringo, offered in multiple versions:
- MX, FT, and enduro trims
- Engine sizes ranging from 125cc, 175cc, 250cc, and 360cc
While PDV marketed bikes as assembled in the United States, industry rumors suggested production in Taiwan.
The Gringo frames were inspired by Japanese-engine designs, and the bikes were built using chromoly frames associated with
Champion—part of why Gringo models developed a dedicated following.
Why PDV Was So Short-Lived
The Gringo era appears to have lasted only about two years (1973–1974),
with estimates as low as 112 units. The company eventually went out of business after a
trademark and patent infringement lawsuit filed by Champion.
Modern Legacy: Flat-Track Culture & “Frame-Friendly” Parts
Even with criticism over frame flexing, surviving PDV Gringo frames became sought-after by amateur flat-track racers
looking for a more affordable option compared to authentic Champion frames. Many owners also swapped out
original powerplants for real Yamaha DT or YZ engines—helping the Gringo live on
in racing circles.
Perfect for Collectors
This 1973 Power-Dyne Vehicles, Inc. stock certificate makes a great addition for collectors of
vintage motorcycle memorabilia, racing history, PDV Gringo fans, and anyone who loves the quirky “lost brand” stories
of early 1970s powersports.