If your passion is autocrossing or taking your Z to the race track, these tires are all you need for a perfect racing day.
The tires were purchased at Tire Rack and they were heat cycled before being shipped. If you are unfamiliar with heat cycling, please feel free to read the page in the link below.The first time a competition tire is used is the most important. During that run, its tread compound is stretched, some of the weaker bonds between the rubber molecules will be broken (which generates some of the heat). If the tires are initially run too hard or too long, some of the stronger bonds will also be broken which will reduces the tire's grip and wear qualities. Running new tires through an easy heat cycle first, and allowing them to relax allows the rubber bonds to relink in a more uniform manner than they were originally manufactured. It actually makes them more consistent in strength and more resistant to losing their strength the next time they are used... read more in the link below: Tire Rack Heat Cycling The tires are mounted and balanced on a set of stock TT tires, that are the original set of wheels from my Z that I owned for 10 years. They were only used on the track for many years, as I had another set of wheels on the Z.
They are all true, no bends, no damage, just minor scratches around the edge that does not effect the performance. Tire Size are:
225/50/ZR16 Front & 254/45/ZR16
The front are $176 new each and the rear are $189 new each. These tires are made in Korea and are the original competition member of the Kumho high performance tire family. It is a DOT-legal, race-winning tire which, by capturing national championships at the Sports Car Club of America (SCCA) Tire Rack Solo II Nationals and SCCA Road Racing Runoffs, has proven its capabilities in both autocross and road racing competition. The VictoRacer V700 features an asymmetric tread design molded at 5/32" to 6/32" of tread depth in its two major circumferential grooves. Its tread design features extra wide tread blocks for its outer shoulder (which comprise about 1/3 of the tire's tread width) to maximize cornering grip while promoting tread life (when new, the shoulder blocks are interrupted only by shallow, 1/32" deep lateral grooves). The center and inner shoulder portions of the tread design are comprised of short, stable tread blocks to further enhance handling while providing some wet traction when new (or at near full tread depth). The V700 features a tread compound specifically developed to provide maximum grip, handling and treadlife. Internally the V700 has two steel belts reinforced with two nylon cap plies to help stabilize the tread area and provide Z-speed rated (for 15", 16", and 17" diameter sizes) capability. Additionally, three rayon carcass plies with sidewall stiffeners provide high temperature durability and quick steering response. Attractively priced, the Kumho V700 is designed to provide the best traction and treadlife for your racing dollar. Tire Rack V700 All 4 tires for $400
Wheels $450 .. with bolt-on chrome valve stems.
or take Wheels/Tires combo for $700
Buyer pays shipping The last picture is for you to compare the thread on a new tire and those I am selling .. there is little wear compared to new tires. (Note that the tires you are comparing are not the same size) 
 
The last picture is for you to compare the thread on a new tire and those I am selling .. there is little wear compared to new tires. (Note that the tires you are comparing are not the same size)
** Nissan center caps not included and are for demonstration purposes only.
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4 TTZ wheels with Victoracer V700, Heat Cycled by Tire Rack - 
