I think it would be helpful to know dimensions and angles of the frame first. I find with my 26" MTB frames the head angle is in the area of 70 degrees. With that and a descent length fork, I like a little more offset to reduce the trail to around 47mm. It works well for me with a front load. That typically means a fork offset of 60 to 62mm. I have had a few forks bent to get that offset. It is pretty easy for a descent frame builder.