according to my handy dandy coversion chart for offset (MM) to backside setting (in) ;
On a 10" wide rim -25 should be 4.5 Inch B.S.
-13 should be 5"
6 should be 6
25 should be 6.5

 

What would be the offset and backspacing on this wheels, using your handy dandy conversion chart? 20" x 9", 1 has a +10 offset, the other has +18 offset. Trying to find how much lip on both of these wheels.
thanks,
Chance

 

I'll try to scan the chart and maybe we can have it as a sticky post with wheels and stuff

20X9
my chart doesn't go in 10 and 18's but
+13 would be 5.5
+6 would 5.25
I would assume =10 would fall around 5 3/8

+19 would be 5.75

This is the chart I got with my wheel works fitment tool.
Hope this helps