Offset Reference Ranges - "Will it Fit?"

[dru21281]

Oh ok. That's easy enough. I didn't know it had the offset stamped too.

Yup everything is on there offset will begin w/et.

Sent from my XT1080 using Tapatalk

[SIX.OH!]

Only had time to pull off one wheel real quick, but the diameter was all that was stamped on it (except the max load and some standards codes on the spokes). Doesn't even have the wheel width - says "20 x" then has a little rectangle where the width should be. Weird. It has A27 stamped in one spot. That wouldn't be the offset would it? Attached a picture - wheel looks bad from the back - yeck. (doesn't help that they're filthy - caliche gravel road and rain on Sunday)

[Slizzo]

Looks like the manufacturer didn't write it in.

Offset is the measurement of the distance that the mounting pad is from the centerline of the wheel (width wise). So, on a 9" wheel, you'd measure where the mounting pad is from the 4.5" centerline on the wheel. Positive offsets are towards the face of the rim, negatives are toward the inside of the wheel (in relation to the vehicle.)

A +40mm offset on a 9" wheel means that the mounting surface is 40mm outside (again, in relation to the vehicle) of the centerline of the wheel.

[SIX.OH!]

Looks like the manufacturer didn't write it in.

Offset is the measurement of the distance that the mounting pad is from the centerline of the wheel (width wise). So, on a 9" wheel, you'd measure where the mounting pad is from the 4.5" centerline on the wheel. Positive offsets are towards the face of the rim, negatives are toward the inside of the wheel (in relation to the vehicle.)

A +40mm offset on a 9" wheel means that the mounting surface is 40mm outside (again, in relation to the vehicle) of the centerline of the wheel.

Thanks! I'll try to check that out today - might be tomorrow. Do you have any pics of your summer setup by chance?

[Slizzo]

Thanks! I'll try to check that out today - might be tomorrow. Do you have any pics of your summer setup by chance?

All over the forum here already, search for posts by me.

[SIX.OH!]

Finally had a chance to take the wheels off to measure the offsets... only to find that the measurement were indeed stamped on the inside the wheel - on the edge. They are actually 20x8.5, not 9.5 like I thought, and the offset of all 4 wheels is 43. Why the previous owner spent that much money and decided to get all 4 wheels exactly the same size/offset is beyond me, but that's what I have now. So, I've heard that a 275 is the max for a wheel that is 8.5. Should I get 275 all around or is there any benefit from a little narrower (like the 255 that I have now) in the front and 275 in the back? Currently looking for pics of a 275 on a 8.5 wheel to make sure it won't be too much bulge. I know though that brand will affect that.

[-Ray-]

You can add an inch to the wheel. Weldcraft wheels in Livonia, MI can do it.

[GingerBeard Man]

I'm running OEM 20" camaro wheels. I haven't had much time to research, but I blew a tire out today hitting a pothole, and possibly did damage to the wheel.

I already need two new tires, so I am looking to possibly replace them all. What is the better option for a stock height vehicle? I MAY go lower on springs later on, but I also want more sidewall for protection that I currently have.

I know this has probably been asked a million times, but I am limited on free time, and could use a quick reply. I will research when time permits as well. Thanks for any advice. I need to have the car up and running ASAP.

Oh, and screw Dallas County and their crappy roads!

[Slizzo]

275/30/20 rear 245/35/20 front. Best bet for the G8.


Sent from my iPad using Tapatalk

[GingerBeard Man]

Will a 35 series work well in the rear?