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Tire Size Conversion Chart by Jcbigbie
Started on: 05-20-2020 09:19 AM
Replies: 7 (158 views)
Last post by: Habanera Hal on 05-26-2020 05:12 PM
Jcbigbie
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Report this Post05-20-2020 09:19 AM Click Here to See the Profile for JcbigbieSend a Private Message to JcbigbieEdit/Delete MessageReply w/QuoteDirect Link to This Post
How wide is my tire? How tall is my tire?

Well, i created a spreadsheet with the more common tire sizes. It converts Eveything to inches, gives you side wall height and total height with a 15",16",17" and 18" rim.

Any suggestions are welcome.
A direct link to this sheet.
A Google docs link.








[This message has been edited by Jcbigbie (edited 05-21-2020).]

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Dennis LaGrua
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Report this Post05-21-2020 06:20 AM Click Here to See the Profile for Dennis LaGruaClick Here to Email Dennis LaGruaSend a Private Message to Dennis LaGruaEdit/Delete MessageReply w/QuoteDirect Link to This Post
Nice write up but the supply chain on 15" tires is thinning. The modern look of larger rims is here.. What I try for a more modern look, is to use tires that have about the same OD as the OEM tires. This way the speedometer error will be minimal or not at all.

For 17' wheels I use 225 x 45 R17 rear and 205 x 45 R17 front
For 16's wheels I use 225 x 50 R16 rear and 205 x 50 R16 front

As for 18's I wouldn't use them. The ride is rough enough with the 17's. Actually the 15" tires provide the best ride but IMO the larger rims do modernize the look..
Not trying to hijack your thread; just provide something useful as you have done.

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" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, P-log Manifold, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, Champion Radiator, S10 Brake Booster, HP Tuners VCM Suite.
"THE COLUSSUS"
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
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Jcbigbie
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Report this Post05-21-2020 07:52 AM Click Here to See the Profile for JcbigbieSend a Private Message to JcbigbieEdit/Delete MessageReply w/QuoteDirect Link to This Post
Thanks.

I just added 16" - 18" rim sizes to the sheet.
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Dennis LaGrua
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Report this Post05-21-2020 04:25 PM Click Here to See the Profile for Dennis LaGruaClick Here to Email Dennis LaGruaSend a Private Message to Dennis LaGruaEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by Jcbigbie:

Thanks.

I just added 16" - 18" rim sizes to the sheet.


With so many Fiero owners going to sport wheels this is very helpful.

------------------
" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, P-log Manifold, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, Champion Radiator, S10 Brake Booster, HP Tuners VCM Suite.
"THE COLUSSUS"
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE "

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Spadesluck
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Report this Post05-21-2020 06:42 PM Click Here to See the Profile for SpadesluckSend a Private Message to SpadesluckEdit/Delete MessageReply w/QuoteDirect Link to This Post
Very helpful for sure. I can not tell you how many times I use a google chart to look up widths and rim sizes when tire shopping.
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Jcbigbie
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Report this Post05-22-2020 01:41 PM Click Here to See the Profile for JcbigbieSend a Private Message to JcbigbieEdit/Delete MessageReply w/QuoteDirect Link to This Post
If anyone has a size they would like to see here, let me know. I can edit this file very quickly.

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Raydar
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Report this Post05-26-2020 04:25 PM Click Here to See the Profile for RaydarClick Here to Email RaydarSend a Private Message to RaydarEdit/Delete MessageReply w/QuoteDirect Link to This Post
Very cool! Thanks for your effort.
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Habanera Hal
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Report this Post05-26-2020 05:12 PM Click Here to See the Profile for Habanera HalClick Here to Email Habanera HalSend a Private Message to Habanera HalEdit/Delete MessageReply w/QuoteDirect Link to This Post
For any tire size, wheel width/diameter, offset, etc., try this:

http://www.rimsntires.com/specspro.jsp

Will also offer clearance specs, speedo change, and other info.
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