Quote Originally Posted by MountainRider2 View Post
Seems like there are two different measurement techniques that muddy the water. The 1st, according to Glenn was that a legal car was measured taking a vertical drop from the fenders to the top of the tread. The second measurement technique calls for measurement 3" off the ground using something similar to the Longacre plates. Are we in violent agreement?


The rule up to 2011 was "measured taking a vertical drop from the fenders to the top of the tread" and was a visual check only. If the drop touched a thread block the car was not legal. If it did not, it was legal. For 2012 we took a legal car (at the edge of being not legal per the old rule) and measured that track at "3 inches off the ground using something similar to the Longacre plates" and used that number as the limit.
We took a visual check and found out what that distance was 3" up the side of the tire and set that as the limit.

Clear?