Vroom vroom?

[themonsterdance]

Full disclosure: I know nothing about motorcycles, so please keep the mocking down to a dull roar, if possible.

What type/brand/make of classic motorcycle is shown here, or is it something completely custom-built? There's no info provided, and I've tried googling key details, but to no avail. I stumbled across it at random while searching for

Comments

[spooky_nine]

I know that it's made by Matchless, but that's all I know.