A while back someone asked about a 1988 KX500 front hub/ Wheel and what it would interchange on.
I couldn't find the original post.
I did not have that information recorded.
I finally got around to pulling one and measuring it.
Here is the specs:
F-1123 -
GRAY -
17MM AXLE DIA -
BRG TO BRG 102MM -
ROTOR OD 250MM -
FITS 88 KX 125, 250, 500
It is exactly the same as the 85-87 KX 125, 250, 500 except that they are painted black and this one is the natural gray.
Hope this helps