• From: Raleigh, NC
  • Registered: 2020-01-25
  • Posts: 325

Topic: What is tread wear?

The rules say You must have a minimum treadwear of 190. What is treadwear? Are acceptable numbers 190 and up, or are acceptable numbers 190 and less? I don't understand what treadwear means

Former Captain
1996 Crown Vic. #55
Team Racing Cosmo
  • From: Cleveland, OH
  • Registered: 2011-09-03
  • Posts: 2,227

Re: What is tread wear?

Treadwear is a non-standardized manufacturer indication of tire grip/wear. Higher the number, harder the rubber, longer it will last, less it will grab.

So you need to have tires with a marked treadwear of 190 or UP on the tire sidewall.

Mistake By The Lake Racing (MBTL)
88 Thunderbird "THUNDERBIRDS ARE GO!", Ex Astris, Rubigo / Semper Fracti
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Guildenstern's Website

  • From: Tustin, CA
  • Registered: 2010-12-30
  • Posts: 3,275

Re: What is tread wear?

AKA UTQG number.  https://en.m.wikipedia.org/wiki/Uniform … y_Grading/

1990 RX7 "Mazdarita"  1964 Sunbeam Imp (IOE 2013 Sears Pointless) 2002 Jaguar x-type (Winner C-Class 2021 Sears Pointless)
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