FC: Wheel Fitment Thread

[Phoenix7]

Thanks to Roen for supplying me with this easy-to-read explanation on wheel offsets.

First you need to figure out what you have and what you need.

FC3S Bolt Pattern
4-lug and 5-lug are the same: 114.3

When you look for a wheel you base it on your needs:
114.3 x 4 or 114.3 x 5 - Simple

Once you have the right lug pattern you move on to the offset.

This is by far the simplest, most easy-to-read explanation I've received in a while and it must be shared with those who will eventually need new wheels.

Originally Posted by Roen

Positive offset is how inside your wheel is relative to the suspension.

A high offset will put your wheel next to your suspension.

A low (or negative) offset will put your wheel further out by or past the fender.

Spacers serve to reduce offset, so a +40 with a 15mm spacer becomes a +25.


Stock offset is +40 on a 7"/6.5"/6" and 5.5" rim.


I've been told that +30 on a 8 inch rim works perfectly.

In order to determine how much offset you need, use 8 inch, +30 as a base. See how much bigger your rim is to the 8 inch baseline.

Divide the difference by 2 and convert to millimeters (1 inch = 25.4mm).

Subtract that from the +30 offset to get your new offset.

I like how the baseline starts on an 8" rims since most will want to upgrade to a wider wheel (no point in buying new wheels that will not perform better than stock).

That's pretty much it. I don't know what else you'll need and I'm not a guru on this so if you have any questions or additions just post them.