I've read about bolt types on Brit bikes a bit. It seems that they had
a variety of things they called Whitworth.
Chad Fernandez
Michigan, USA
Merle K. Peirce wrote:
That's because you had the wrong wrenches.
I've always wanted to have
someone ask me for a half-inch wrench and hand him a Whitworth
half-inch. I think there's a set in the Rover.