Brian E
Viper Owner
I am going to order a set of HRE wheels for the Viper and have been struggling with the decision of whether to order 20 inch all the way around or go with 20 inch rear and 19 inch front. Clearance in the wheel well doesnt seem to be an issue so it is a matter of tire diameter and sidewall height. I came up with this info and hope it might help someone else. It really surprised me to find out that by going to the larger wheels it actually decreased my overall tire diameter. By the way Pirelli only makes (1) size tire for the 20 inch wheel.
Tire size______________________Diameter__________Tire sidewall
345/30/19(stock rear)____________27.149_____________4.074
345/25/20_____________________26.791_____________3.396
275/35/18(stock front)___________25.579_____________3.789
275/30/19_____________________25.496_____________3.248
Tire size______________________Diameter__________Tire sidewall
345/30/19(stock rear)____________27.149_____________4.074
345/25/20_____________________26.791_____________3.396
275/35/18(stock front)___________25.579_____________3.789
275/30/19_____________________25.496_____________3.248