New Tire Question

ScottmanZ · 09-23-2011, 08:06 PM

I just replaced the stock tires on my 40th and I have a question about the overall tire diameter.

I had my shop install a set of General G-MAX AS-03's....245/40ZR19's in the front and 275/35ZR19's in the rear. When I got home I noticed that the rear tire diameter look WAY smaller than the front. I know the fronts are supposed to a bit taller than the rears, but it just looked way more off than with the stock tires. I measured the overall diameter of the back and they are 25.5" compared to the front which are 26.5".....a whole inch seems wrong to me. The rear tire gap is way more now than it was with the stocks.

Thoughts anyone?

Fastech · 09-23-2011, 08:13 PM

General lists their respective diameters as 26.7" and 26.6". I'd measure them again... If you still see an inch difference, closely double check the sizes to make sure you didn't end up with a wrong fitment.

---
I am here: http://maps.google.com/maps?ll=35.159895,-85.367842

ScottmanZ · 09-23-2011, 08:26 PM

I saw that on General's site as well....the rears are definitely 25.5 (give or take a tenth of an inch or so) and the tires are marked correctly as 275/35ZR19 XL so I'm baffled as to why they measure a full inch shorter than spec....

EDIT:

I was so fixated on the invoice which was marked correctly as 275/35ZR19.... I just double checked the actual tires and they are 275/30ZR19's!! They put on the wrong tires...lol...thanks for the help!

I'll head back in the am and get this straightened out.

09-23-2011, 08:06 PM	#1 (permalink)
ScottmanZ Base Member Join Date: Jan 2011 Location: Minnesota Posts: 26 Drives: 370Z 40th Anniv Rep Power: 14	New Tire Question I just replaced the stock tires on my 40th and I have a question about the overall tire diameter. I had my shop install a set of General G-MAX AS-03's....245/40ZR19's in the front and 275/35ZR19's in the rear. When I got home I noticed that the rear tire diameter look WAY smaller than the front. I know the fronts are supposed to a bit taller than the rears, but it just looked way more off than with the stock tires. I measured the overall diameter of the back and they are 25.5" compared to the front which are 26.5".....a whole inch seems wrong to me. The rear tire gap is way more now than it was with the stocks. Thoughts anyone?

09-23-2011, 08:13 PM	#2 (permalink)
Fastech Base Member Join Date: Aug 2011 Location: Chattanooga Posts: 27 Drives: 09 370Z Sport PG MT6 Rep Power: 13	General lists their respective diameters as 26.7" and 26.6". I'd measure them again... If you still see an inch difference, closely double check the sizes to make sure you didn't end up with a wrong fitment. --- I am here: http://maps.google.com/maps?ll=35.159895,-85.367842 __________________ Brian Flanagan 09 Base/Sport 6MT Future SCCA/NASA Weapon!

09-23-2011, 08:26 PM	#3 (permalink)
ScottmanZ Base Member Join Date: Jan 2011 Location: Minnesota Posts: 26 Drives: 370Z 40th Anniv Rep Power: 14	I saw that on General's site as well....the rears are definitely 25.5 (give or take a tenth of an inch or so) and the tires are marked correctly as 275/35ZR19 XL so I'm baffled as to why they measure a full inch shorter than spec.... EDIT: I was so fixated on the invoice which was marked correctly as 275/35ZR19.... I just double checked the actual tires and they are 275/30ZR19's!! They put on the wrong tires...lol...thanks for the help! I'll head back in the am and get this straightened out. Last edited by ScottmanZ; 09-23-2011 at 08:31 PM.

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