Upgrading tire size to 18/19..
10-19-2017, 02:45 PM
#1
3rd Gear
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Upgrading tire size to 18/19..
I dropped my 2001 C5 the 1" which is available within the factory settings and I want to upgrade by wheels from the 17" and 19" that came from the factory to 18" and 19" but I don't know if that will cause a problem due to the larger rim size? Can someone help? My tire guy is not sure..
Doug
Doug
10-19-2017, 09:11 PM
#2
Le Mans Master
If you maintain the overall tire diameter, offset, width, sure.
Going up one wheel size is almost exactly a drop in aspect ratio (3 steps in width does same). Example;
Stock Z front is 265 40 17 = tire OD of 25.3"
Switching to 18; 265 35 18 = tire OD of hey, 25.3"
Your base model front; 245 45 17 = 25.7" (235 wide which is 3 steps narrower = 25.3")
Going up one wheel size is almost exactly a drop in aspect ratio (3 steps in width does same). Example;
Stock Z front is 265 40 17 = tire OD of 25.3"
Switching to 18; 265 35 18 = tire OD of hey, 25.3"
Your base model front; 245 45 17 = 25.7" (235 wide which is 3 steps narrower = 25.3")
10-20-2017, 04:34 PM
#6
3rd Gear
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If you maintain the overall tire diameter, offset, width, sure.
Going up one wheel size is almost exactly a drop in aspect ratio (3 steps in width does same). Example;
Stock Z front is 265 40 17 = tire OD of 25.3"
Switching to 18; 265 35 18 = tire OD of hey, 25.3"
Your base model front; 245 45 17 = 25.7" (235 wide which is 3 steps narrower = 25.3")
Going up one wheel size is almost exactly a drop in aspect ratio (3 steps in width does same). Example;
Stock Z front is 265 40 17 = tire OD of 25.3"
Switching to 18; 265 35 18 = tire OD of hey, 25.3"
Your base model front; 245 45 17 = 25.7" (235 wide which is 3 steps narrower = 25.3")
