will this headset fit ???

[Threaders]

Hi
Looking for a gold headset and saw a 1' threaded one with these measurements:
CUPS FIT IN STANDARD SIZE HEADTUBE 30.2MM
 
CROWN RACE IS 26.4MM
 
Its a standard old school frame schwinn freeform predator, I am guessing the same size as 80's skyway or mongoose ect.
Any help would be appreciated cheers

[MartyC]

Best thing to do is buy a pair of digital vernier calipers and measure the frame head tube inside diameter that way you can be certain as to whether it will fit  .