TOPIC:

Hi is it possible to swap.round fork legs and fit my calipers in the position like a kz900 my bike is a kz1000A it came with the calipers behind lower leg so i don't know if this is right for the 1000A and if I can change position 
cheers 

What year. 1977 A1 had single LH brake in front and the 1978 A2 had a single LH mounted to the rear. All years LTD had dual brake behind the fork. Also the 1979-1980 A3 & A4 had dual behind

Sam, most people would want the calipers at the rear, that's the optimal position and the reason all motorcycles of the past 40 odd years have them there....
I used to reverse the forks on my Honda 4's in the early 1980's to put the calipers at the rear, I had to use aftermarket front guards as the guard mounts didn't work properly backwards.
I'd just leave them as is...

How different is the position of the front brake caliper behind or in front of the fork? Thanks