Is the Bridgestone Potenza S-04 Pole Position the Right Max Performance Summer Tire for You?

As the flagship offering from Bridgestone, the Potenza S-04 Pole Position is a Max Performance Summer tire for drivers that demand the pinnacle of traction and responsiveness. Replacing the RE050A Pole Position, this new offering delivers more wet and dry traction.Carrying forward with an asymmetric tread pattern, the inside of the tire is tuned for wet...  Read More

Tire Rack Consumer Review of the BFGoodrich g-Force Sport COMP-2

What a great tire! Great traction wet dry! Good stiff sidewall for ride and steering! Wow is this tire wide, so much more then the stock bridgestone tires. The tire did great in the rain at 70mph. Great tires for grip around the turns! So far the tire is low on noise at any speed! Great tire for ride comfort a little stiff but smooth for the S2000 Honda!...  Read More

Tire Rack Consumer Review of the BFGoodrich g-Force Sport COMP-2

I bought these tires for a 2007 Honda S2000 as a replacement for the stock Bridgestone Potenza RE-050 non Run-flat. These had worn down to wear indicators by 45K miles and the road noise was now being fully transferred through the chassis and into the cabin where it had become unbearably loud.I was looking for a bit more width and I happened upon these....  Read More

Tire Rack Consumer Review of the Dunlop Direzza Sport Z1 Star Spec

These have actually lasted me a decent amount of time, including a trip to the dragon. They did lose grip over time, they don't have good grip if the ground is cold or rainy, then they are rather useless with a turbocharged s2000, but the have held up. These held up better then the Falken AZENIS RT-615, which didn't finish the trip to the dragon (about 500...  Read More

Tire Rack Consumer Review of the Continental ContiProContact SSR

Two sets of this same tire in 59,000 miles over 50 months, and both sets had similar results.Ratings are averages for full life of use. When newer --first 10k-- they performed much better in all conditions including wet. But as they wore out they became progressively slicker and apt to hydroplaning in any wet conditions. Tried many different pressure...  Read More

Tire Rack Consumer Review of the Michelin Pilot Super Sport

Replaced the stock Bridgestone RE-050 tires on my S2000 with Pilot Super Sport tires. I was lured in by all the positive reviews, the low-ish price, low weight, and a recommendation from a friend that has the same tires. I have to admit that I've been pretty disappointed so far. The Michelins excel (in a big way) at providing a soft, quiet ride on cars using...  Read More

Project STR Trophies in the Largest Class at the 2011 Tire Rack SCCA Solo Nationals

Whew, that was tough. The 2011 Tire Rack SCCA Solo Nationals, that is, where the STR class was the largest with 64 drivers going head-to-head; and man, oh man, was it a battle.We drove on the faster East course on day one, designed by GRM’s Andy Hollis. His course featuring a mix of transitions and fast sections had us to the rev limiter in three places. The...  Read More

Project STR Faces Some Tough Competition

Our lead project drivers Chris Harvey and John Rogers pointed the red Mazda MX-5 towards Toledo, Ohio for last weekend’s Tire Rack SCCA Northern States Championship. With lots of room, smooth concrete and high grip, this is one of the best venues east of the Mississippi. The two-day combined time event featured 50-second courses that were fast and relatively...  Read More

Project STR Competes in 4 Events in 3 Weeks

It's been a busy few weeks for Project STR as the summer race season has finally made its way to the Midwest with three back-to-back weekends of competition. First up was an outing to the Tri-State Sports Car Club event at the Sears Centre in Hoffman Estates, IL for a shake down on the installation of our new KW Clubsport suspension. Installation went well,...  Read More

Project STR Roars Back To Life

After a long winter hibernating in Florida at the Grassroots Motorsports headquarters, Project STR finally saw some action this weekend at the Tire Rack SCCA Dixie National Tour in Cecil, Georgia. Tire Rack drivers Chris Harvey and John Rogers packed their bags and headed for Georgia to compete against 27 other drivers in the burgeoning STR class, which was...  Read More

Honda S2000 STR Class Tire & Wheel Package

If you are looking to be competitive in the STR autocross class, here's a very good package of wheels and tires. Take a look at the TRMotorsport C3 and the Bridgestone Potenza RE11.  In 17x9, the wheel works on all four corners and only weighs 19.2 lbs. They are available in three different finishes depending on the look you want.The Bridgestone tire is...  Read More

Honda S2000 in the Snow?

I know a lot of people don't think the S2000 is good in the winter, but with the right tire choice they are a fun car in the snow.  If you live in the snow belt, the correct choice of tire is different than if you live in St. Louis where you can get away with a tire like the Dunlop Winter Sport or the Michelin Primacy Alpin PA3. On the other hand if you are...  Read More

Bridgestone Potenza RE070

The Bridgestone Potenza RE070 continues to be one of the top Extreme Performance Summer tires on the market. It is designed for serious sports car and sports coupe enthusiasts looking for race tire-like traction on the street or for use in autocross, drifting and track events. This tire is a favorite amongst the drivers of cars like the Subaru STi,...  Read More

Project STR Captures THREE Divisional Championships

It’s been a busy two weeks for Project STR.Our first outing took us to Miller Park in Milwaukee, WI for the CENDIV Divisional Championship. This area has been a hotbed for street tire competition with plenty of fast drivers to help us gauge our performance. GRM/Tire Rack drivers Chris Harvey and John Rogers traded fast times both days. Chris pulled out the...  Read More

Another Victory for Project STR at the Toledo ProSolo

As our 2010 Mazda MX-5 autocross project continues to evolve, we’ve been hard at work on Project STR, installing and testing suspension components and adding some go-fast graphics.We’ve also tried to answer the question about what tire and wheel size produces the quickest lap times. One thing we did confirm is that what feels good isn’t always fast, and...  Read More

Project STR scores at the Peru National Tour

The blog has been a little quiet while we were hard at work installing and testing “go-fast parts” on the Project STR MX-5. In addition to the KW Variant 3 Coil-Overs and Hotchkis Sport Anti-Roll Bars, we’ve been experimenting with different sizes of Dunlop Direzza Sport Z1 Star Spec tires to find out what makes our MX-5 faster. A full tire test report will...  Read More

STR class for autocross

The TRMotorsport C3 is a 17X9 62mm offset wheel that fits front and rear on the Honda S2000 for autocrossing. You can run the 255/40R17 tires front and rear for the best handling. It is a very aggressive application for the street but to be competitive in this class it is the best option.The wheel is only 19.2 lbs and it comes in black, carbon gray...  Read More

Honda S2000 Performance Tires

There are a number of tires that will work on the Honda S2000 but the three or four best that I have seen are the Bridgestone Potenza RE-11, Dunlop Direzza Star Spec , Yokohama Advan Neova and the Kumho Ecsta XS . All of these tires are going to give you excellent performance on the street and can be driven in an autocross or on the track. They are suited...  Read More

Don't forget to break in those new tires.

Whether you purchased S2000 tires or Camaro tires, or performance SUV tires—in fact, it doesn't really matter what kind of automobile tires you buy, they'll all need to be broken in before you push the pedal to the metal.During the manufacturing process, a release lubricant is applied which prevents the tire from sticking to the mold in which it was created....  Read More

First Outing for Project STR

Project STR Mazda MX-5 saw its first competitive action over the weekend at the Tire Rack SCCA Solo National Tour in Georgia. To capture a baseline before the upgrades begin, Chris and John drove the car in stock trim – with nothing more than an optimized alignment. They competed against fully prepared S2000s and a few MR-2 Spyders using the MX-5’s...  Read More