Patman said:Here's a little secret, measure them. If you don't have calipers basic math will easily get you there if you have a cloth tape measure you can wrap it around the leg and measure the circumference, or you can measure the diameter at the top of the leg. Nothing wrong with asking it's easy which is the American way but there is some job satisfaction in doing it yourself you can then a confirmation answer if you feel the need.
Patman said:To expand your options how about giving the measurement of the clamps and asking what fork legs would fit? Might even find somebody that has some sitting around looking for a home.