<<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>>
         <<  Lancair Builders' Mail List  >>
         <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>>

When they came up with the ply rating system on tires it was a direct count of the "old" materials that were in use. Now the rating is based on the equivalent strength rather than the actual ply count. You'll notice that the tires no longer say '8 ply' but will say '8 ply rating'.
In my experience they may have the same strength but they sure attract nails more often.
Don

LML website:   http://www.olsusa.com/Users/Mkaye/maillist.html
LML Builders' Bookstore:   http://www.buildersbooks.com/lancair

Please send your photos and drawings to marvkaye@olsusa.com.