Ariel Square Four: The Squariel
Story and photos: Jim Scaysbrook The basic design spanned nearly 30 years of production, and the Ariel Square Four has legions of fans more than half a century after the last one was made. The […]
Tilbrook
Spin Doctors: The Rotary Valve Cylinder Head
The rotary valve cylinder head has been around longer than the motorcycle, falling into, and out of favour on a regular basis. There’s a school of thought that says this system offers so many advantages […]
Remarkable Rex Tilbrook
There are more than 200 Australian motorcycle manufacturers scattered in the annals of history, stretching back to the earliest days of motorised transport, alas, now all gone. Perhaps the last was the Tilbrook, the work […]
