offroad wheel spec's

[cannonball]

I've been researching offroad wheels for my 09 pathfinder se 4x4.

all I've really been able to find out is that the bolt pattern is 6x114.3 (6x4.5) and the oem wheels are 17x7.5...

what I'm curious to know is what offset and backspacing and center bore should I be looking for?

would running wheel adapters to the xterra bolt pattern of 6x139.7 be safe?

[cannonball]

ok so i'm still looking for these spec's i've found wheel adapters that will convert to 6x139.7mm and be 1.25" wide.

im trying to calculate the offset and backspacing requirements with this 1.25" width change.