the seals are 43 mm according to Kawasaki.
No, they are totally different
Loosen all bolts and remove wheels and brakes. Remove forks and the caps. Drain the old oil. Clean the fork well. Pour fresh oil into the front fork and pump it.
If the forks are badly scuffed then you need to either replace or get them resurfaced,otherwise it will just keep poping the seals. No matter what you do.
Circumference = pi*diameter = 785.4 units.
400cc (per fork) should be about average. The range is about 330cc to 425cc, depending on how stiff you want the forks to feel.
The diameter would be 7.816 feet.
The bore diameter of a 250-3000 savage is .257
.223
apparently the 85 and 86 diameter is 35mm(same as the 85 tri-z 250), earlier years are smaller diameter.
The radius is half the diameter, which is 125cm. 2pir is 2x125x3.14159 which is 785.4cm
proabably up near the forks of the bike or some where right there
The 2012 Lexus IS-250 has 43.9 in. of front leg room.