Tire deduct

[Gary 38683]

For Top Flight judging, what is the point deduct for red line radials 205/75-15
and not Firestones?

[Harmon C.]

Re: Tire deduct

Radials were first installed at the factory in 1973 GR-70-15 and are not made as reproduction. The Corvette judging reference manual lists the % deduct and you just need to pick the match for your year corvette. They would score 0 on some years. This manual is sold in the NCRS store.

[John H.]

Re: Tire deduct

For a '67, the (5) tires carry 30 originality/30 condition points (6/6 each per tire); non-OEM brand radials (of correct service replacement size and correct whitewall/redline width) call for a standard originality deduction of 75%, so I believe they'd lose 22 originality points, but would still be eligible for the 30 condition points.