So it not too clear and I'll try to clarify my question.
Imagine one wheel 17,5 x 6,75 - 6 holes 143/141 K. I want to develop a new wheel with same characteristics changing only the number of bolt, 17,5 x 6,75 - 5 holes 143/141 K.
How may I get sure that 5 hole could carry the same load...