National Staff Greg G. Posted April 4, 2018 National Staff Share Posted April 4, 2018 TECHNICAL BULLETIN 4-4-18 ST1-ST4 NSW Tire Measurements The use of labeled tire sizes will be discontinued on May 31, 2018, and only the NASA Section Width will be used to determine tire size compliance. ST1-4 6.5.2 Tire Size NASA Section Width 266mm or smaller (DOT-approved) Or any currently produced size 245 or smaller = +0.6 NASA Section Width 267mm to 282mm (DOT- approved) Or any currently produced size 275 = +0.3 (Note: Deletion of the use of labeled tire size occurs May 31, 2018) Quote Link to comment Share on other sites More sharing options...
SSTAT Posted June 24, 2018 Share Posted June 24, 2018 Sorry if this is dumb, but Im about to spend 1K on new tires and I dont want to make a mistake. According to the 2018 TT rules, you can still get whatever tires/size you want, those sizes listed above are simply the only ones that come with a power/wt 'adjustment' right? Ive run 315/35/17 since 2007 and dont want to change, my car weighs 3700lb. Thanks Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.