asoltan

I'm planning to replace the stock wheels/tires on my LX (16x7 +45) with something slightly bigger and nicer looking. But I want to ensure that I do it correctly, without throwing off suspension geometry, worsening steering, or increasing wear on bearings.

I'm looking at the 17x7.5 Enkei ICON, which will be +1" in diameter and +0.5" in width. It is available with a +38 offset and +45 offset. If there wasn't a difference in width, I would get the +45 right away. But with the 7.5" width, I'm unsure whether +45 is still the best offset.

I'm not concerned with wheels being more flush with the fender or anything like that. I want them to fit and function properly first and foremost.

What would you pick in my situation? Or am I wrong, and neither offset is a good option?

Ryanthegreat1

+45 if you don't wantthe geometry to change.

An extra 1/4" on either side is nothing as far as clearance is concerned.

asoltan

My thinking was that +45 would be the right choice in terms of gemoetry, but I got this answer elsewhere, which has me confused:

"Half an inch is 13 mm. You’d want to decrease the offset by half that amount to maintain the same geometry with the new wheels.
Go with +38 offset for the Enkeis. The difference is only a mm."

Ryanthegreat1

That would be true for wheel backspacing. We are using offset here.

Offset is how far from the center of width of the wheel. Backspacing is how far from the back edge of the wheel.

We are +45mm offset from the center line of the wheel.

If you go +38 offset all of the 1/2" extra width is going towards the fender.

Scrub radius is what we are not wanting to change by keeping the same offset.

asoltan

That makes perfect sense. Thanks for taking the time to help with this.
Assuming that the 1/4" of extra width either side isn't an issue for clearance, I'll go ahead and get the +45 wheels.

Eneto

I'm curious what year and model Honda you have. I'm new to Honda, so don't laugh so hard that you fall out of your chair. We just got our first Honda, a 2019 CR-V EX-L. In searching for winter wheels, I gave up on steelies (my preference for winter tires), because my son-in-law found a good deal on some used alloys - 17x7 - 45. But there is caliper interference, due to a difference in the shape of the back side of the wheel. I don't know what year CR-V these wheels are from.

EDIT to Add: I could get 5mm spacers, but I'm not keen on doing that, especially because it would change it from hub centric to lug centric.