Reconfirming wheel specs for 15x7 Options

[grantsfo]

I'm about to pull the trigger on a set of custom wheels and want to confirm backspacing and center bore for hub centric ring on a 1974 car. I will be running fat 205/50/15 Hoosiers on the wheels.

I will be having 15x7" wheels made with 4 lug 4x130mm bolt pattern.

Back spacing specs: I have heard everything from 4.25" to 5" for backspacing for 15x7 wheels. I'm not afraid of bending my fenders a bit to make things fit and I like the idea of a little wider track. Would 4 1/2" back spacing be enough for somone who has rolled fenders? I have lots of room now with rolled fenders and my 205/50/15 tires on 5.5" Fuchs - easily 2 to 3 inches

I do have centering ring on my front hub. Mueller provided dimensions of 78.60 mm x 15 mm which looks about right using my tape measurer. If I make an error I want to make sure its making this bore too big.

I appreciate everyones feedback.

[grantsfo]

QUOTE (Demick @ May 25 2005, 09:44 AM)

But like I said, you need to carefully measure.  1.5" sounds like an awful lot.  Remember, the place your tire will touch the fender is not at the center point of the wheel well opening - it is toward the rear of the car - so be sure and measure for the minimum clearance you find. Demick

Think I forgot to mention I ran a rolling pin in between my tire and my fender to flare things a bit a couple of months ago for another set of wheels that didnt work out. I remeasured across the entire rear fender and clearence ranges from almost 2 inches to just a little over an inch towards the rear of the fender. So I think 5" may be the ticket especially since the 15x7" Revolutions use that offset.

I'm going to have the wheel guys talk me through the measurement process too as I dont want to screw this up! If we come up with anything other than 5" I'll probably come back for more input.