bgenlvtex
Well-Known Member
- First Name
- Bruce
- Joined
- Jun 8, 2019
- Threads
- 11
- Messages
- 1,314
- Reaction score
- 1,971
- Location
- Texas/Alaska
- Vehicle(s)
- 2020 JTR
Once the top of the ISTR numerical scale is reached, there is a secondary "Prolapse" scale which measures protrusion and is articulated using the various characters of the alphabet. The Prolapse scale isn't reached until 2 or more tires have lost surface contact.Love to see the ISTR on that one! Off the charts!
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