gjkasten Posted October 20, 2020 Share Posted October 20, 2020 Hey All, I have a Spec Z that I have been racing in Rocky Mountain as there are enough racers to make it a fun group. However, once outside of Rocky Mountain or Utah, there is no participation. I'm looking at traveling a few times next year and with a few bolt on parts I can get close to the right HP/Weight ratio for ST4. Tires are the unknown for me. Will a Hoosier 255/35-18, mounted on a 10 inch wheel meet the requirement for being under 282mm? I know they typically run large but I'm not sure how large and I don't want to buy a set only to find they are illegal. I've seen a couple threads that talk tire size, but nothing specific to this set up. Thanks for any help. Quote Link to comment Share on other sites More sharing options...
National Staff Greg G. Posted October 26, 2020 National Staff Share Posted October 26, 2020 I know that they won't fit the 282mm on an 11 inch wheel--not sure about a 10 inch wheel. Quote Link to comment Share on other sites More sharing options...
gjkasten Posted October 26, 2020 Author Share Posted October 26, 2020 Thanks Greg. From the Facebook group, it sounds like a Hoosier 275 mounted on a 10 inch wheel will fit the 282 measuring device. I'd be surprised if anything on an 11 inch wheel fit since the wheel itself is only 4mm shy of the 282 max dimension. Quote Link to comment Share on other sites More sharing options...
National Staff Greg G. Posted October 26, 2020 National Staff Share Posted October 26, 2020 275 Hoosier in a 10” should fit. 275 Toyo on an 11” also fit during our testing 4 years ago. Quote Link to comment Share on other sites More sharing options...
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