The Grey Flash was the racing derivative of Vincent’s single-cylinder Comet family.
Why it matters. A rare competition single showing Vincent’s ambitions extended beyond the famous 1000 cc twins.
Motorcycles / Vincent / Grey Flash
Motorcycle museum record
Grey Flash
The Grey Flash was the racing derivative of Vincent’s single-cylinder Comet family.
Vincentmanufacturer
racingcategory
499 ccengine capacity
Air-cooled singleengine
Museum plaque
Why this bike belongs here.
A rare competition single showing Vincent’s ambitions extended beyond the famous 1000 cc twins.
Technical identity
The engineering at a glance.
This first expansion records museum-level specifications rather than pretending every year and market used one immutable specification.
EngineAir-cooled single
Capacity499 cc
Production era1949–1952
CategoryRacing
TransmissionAdd by variant/year
Final driveAdd by variant/year
Research starting point
Built to improve, not freeze.
Model-year specifications can vary. The museum keeps the stable historical interpretation here and leaves room to add exact variants, racing derivatives, engine codes and source-specific specifications later.
Vincent source / heritage starting point
Open source ↗
Open source ↗