Drag site icon to your taskbar to pin site.

Learn More
Shop Motorcycle Parts, Gear & Apparel at

2009 DOT Race Tire Shootout Conclusion

Monday, November 02, 2009
The Real Verdict 
2009 Track Tire Shootout
Five sets of the latest and greatest DOT race rubber were put to the test and the outcome was... Surprising!

Numbers don’t lie and if you were to look through a microscope one could conclude the Dunlop Sportmax GP-A as top of the pile. But I’m not going to give them a crown, some fancy title, or roll out the red carpet. Why? Because the real revelation wasn’t who won outright, but just the sheer competiveness and utter closeness of the four major race tire manufacturers.

We’ve heard it a million times at the racetrack: “I would be winning if I was on Dunlops,” says the Michelin guy, while a Pirelli rider swears he’s at a disadvantage to everyone on Michelins…and the Bridgestone guys, well, they tend to think all three of the others got one up on them. It’s the vicious circle of blame. And you're all wrong!

I hate to break it to you guys, but as you can see here plain as day, it’s the rider and machine, not the tires, that makes the difference. Look at the numbers: Top four within six tenths at Streets of Willow and seven tenths at Willow Springs - plus the top three with within a mind-boggling one hundredth of second at Big Willow! Not to mention the order changed from track to track, showcasing the highlights of some compared to those of others, with no one tire dominating in section times at either track. It’s for this reason that instead of giving you a scoresheet and ranking them first to fifth, we’re giving the top four a flat-out tie, with the Avons at the back in an obvious fifth.

Now, due to time constraints, wear-factor is one area that wasn’t able to be fully addressed with this test, the exception being the Avons, which had to be double-stinted due to them only sending one set. And the results were apparent, as on Day 2 its times fell off drastically, losing several seconds. As for the rest, from previous experience the I can tell you the Pirellis tend to go off the quickest in high heat due to its soft carcass. Signs of this were even seen in the five laps during our test. Bridgestone falls in right behind the Italian buns due to much the same reason, while the Michelins and Dunlops top the pile. Of those two, the French rear drops off slightly quicker than the American rubber. I’ve raced both for 20-plus laps in both AMA and club competition and can give you extensive firsthand knowledge. That said, in no way is it a drastic difference; small at best. Any tire is going to wear to some extent at this pace and part of being a good racer is managing that. Thus, as a whole - Avons excluded - in a typical 8-10 lap club race all will hold up with little-to-no problem.

Boys and girls, it’s time to bite the bullet and take it like a man. Tire technology has progressed to an amazing level and if you’re on any of the four major players you’ve got nothing to bark about – other than how good they are, that is. So the choice is yours and hopefully this shootout has provided you the needed information to make the correct decision for your personal needs – though you really can’t go wrong with any of the top players...




Day 1 - Streets of Willow Stats
Ambient high temp: 104 degrees

Rider: Steve Atlas,
Bike: 2009 GSX-R1000
Rider Weight: 140lbs without gear

Suspension Settings:
Fork height above triple clamps + 12mm
Fork preload at 2 turns in from full soft
Fork rebound at 5 turns from full stiff
Fork compression at 2 turns from full stiff

Shock preload at 5 threads showing
Shock rebound at 3 turns from full stiff
Shock high speed compression at 1 turn from full stiff
Shock low speed compression at 1.5 turns from full stiff
Day 2 - Willow Springs Stats
Ambient high temp: 105 degrees

Suspension Settings:
Fork height above triple clamps + 12mm
Fork preload at 2 turns in from full soft
Shock rebound at .5 turns from full stiff
Fork compression at 2 turns from full stiff

Shock preload at 5 threads showing
Shock rebound at 3 turns from full stiff
Shock high speed compression at .75 turn from full stiff
Shock low speed compression at .75 turn from full stiff
Rear axle at 30mm, no chain adjustment needed

Login or sign up to comment.

Comments
By The Numbers -Interesting  June 6, 2010 10:10 AM
Taking a look at the two section time tables is interesting. Plugging the numbers into spreadsheets is even more interesting. One thing I found odd off the start was how the Pirelli DSC could completely top one track and finish pretty much last in the other. How much is .01 of a second anyway (@102 mph its close to 1.5ft), .1 of a sec is then almost 15ft, at 140mph .7 sec is over 140ft. The spread sheets reveal that by the numbers the Bridgestone is at the top, the Dunlop is most consistent, the Michelin doesn’t do as bad as they thought (at Big Willow it tops sections 2-6 and its almost like from section 7 they were coasting in) and well for the Pirelli this “all adds up now” and is not such “an anomaly in itself” - see their write up on the Pirelli DSC. Either way the description of how the tires feel means probably as much as the numbers for most of us and for myself it’s unlikely that I could produce these kinds of numbers especially with a consistency within .01 of a sec. Interesting.

http://spreadsheets.google.com/ccc?key=0Aivzs1xS9GgzdEhWUlJfemwxTzlQNEZWWkxmM2Z1RWc&hl=en

http://spreadsheets.google.com/ccc?key=0Aivzs1xS9GgzdGpuQ3UzM2NmcDZTSVc3N1V2Mmo4M3c&hl=en
German Vacca -BTOO3RS  March 12, 2010 05:37 PM
This are a true race tire and we been using this tires since 2006 and we win lot a races and a few championships. We just Win Daytona too (2010)
Eddie -BT003rs  March 11, 2010 08:35 AM
If I am not mistaken the bt003rs retail for less than $300 a set.
Pat Loewen -Michelin vibration  February 28, 2010 07:45 AM
I wanted to add that I mounted a pair of Michelin Power One's last fall for a track day and noticed an unusual front tire vibration between 65-90mph. I immediately pulled off as the tire shuddered trail braking into a corner. I sent the tire back to my Michelin rep and they found that the front was out of round. Michelin replaced both my front and rear without issue, and offered discounts on future purchases. I met one other person with the same issue the next week, both of us had bought the set in spring 2009. I'm wondering if they had a bad production run - that much Michelin was tight lipped about.
Paul Harris -Tires  January 26, 2010 07:23 AM
Hey Great write up and i really appreciate it: "Boys and girls, it’s time to bite the bullet and take it like a man. Tire technology has progressed to an amazing level and if you’re on any of the four major players you’ve got nothing to bark about – other than how good they are, that is. So the choice is yours and hopefully this shootout has provided you the needed information to make the correct decision for your personal needs – though you really can’t go wrong with any of the top players" Plus 1 ! There are so many factors involved with tires... the bike, weight of the rider, suspesion, HP, riding style, etc etc .. Since we are living in the dot.com era people want answers...and they want them now.. Steve is telling the truth.. try out different brands and make your own grown up choice... don't rely on someone else's opinion...
ceosurfer -proof read  November 18, 2009 08:31 AM
Need a copy editor? Please let me proof read for MC-USA!!!!
Bernzie -Michelin tire pressures  November 5, 2009 08:25 AM
Excellent article and I'm looking forward to another one comparing sportbike street tires. I agree with your conclusion as well. This test is like asking which apple is better? a red or a green one - well they're all delicious!

I noticed you ran the Power One rear at 24psi cold on both tracks. Is that what is recommended for the Type V? www.michelinpowerone.com recommends 1.5 bar (21.8 psi) for the Power One rear in all weather/track conditions. Maybe 24 psi was to much pressure, especially for 100+ degree ambient temperatures?

The 31 psi you ran on the Power One front is right in line with what Michelin recommends. I'm just curious how you arrived at 24 psi for the rear.
megaphat -wear and prices?  November 4, 2009 05:11 PM
If the tyres are all equal, find the differences. Give us a better comparison on wear and prices.
Will Parker -street tires..  November 3, 2009 04:27 PM
It sucks these tires wear so much faster than street tires as you gain so much speed/lap times by just changing tires...
Novice Champion -The real winner  November 3, 2009 12:23 PM
Tires are like shoes, and thou four diffrent pairs of shoe perform the same, thier is one pair that feels the best to you.. I raced all those tires this last season with the exception of the Dunlop, and I a "Novice racer" can defently tell you what tires I liked the best.. SO spill the beans what ones did you like the best???
Toaliosis -Pictures  November 3, 2009 11:23 AM
Where are pictures of the tires after they were tested?

ed -conclusion?  November 3, 2009 11:11 AM
What is the real conclusion here? You afraid of the manufacturers? Instead of telling us what you really think - we got political correctness? Or if this is REALLY what you think then how did you get this job? It doesn't matter how close they are there must be the best and second best. Which one would you choose when going to battle? Food on your table depends on it? All of them?
Brian -Excellent work!  November 3, 2009 11:09 AM
Fantastic stuff Motorcycle USA! Seriously, this was a well thought out comparison documenting tire pressure, hot and cold, tire diameter, split times, etc! I really enjoyed reading this and I just wanted to give ya'll props! Now how about a slick comparison between Dunlop NTec, Bridgestone, Michelin, and Pirelli. I would be interested to see if the times were as close.
Steve Atlas -RE Tire Warmers  November 3, 2009 08:10 AM
As for this, it's always a good idea to use warmers as tires run well above 150 degrees. That said, where it's that hot out, even without warmers they will be up to temperature in a matter of a few corners, so it's really your call.
Steve Atlas -RE Prices  November 3, 2009 08:01 AM
If you click on the link that is the tire's name on the top of each page you will be directed to a page with current prices. Thanks.

SteveO
Cedric-NLR. Ar -answer the last two questions about tire warmers for 105 degree temp and prices please  November 2, 2009 07:34 PM
prices?
Unobtanium -Well done  November 2, 2009 06:19 PM
Excellent report. I can imagine each tire could have been optimized with suspension adjustments, if allowed. I know Dave Moss is a wiz at this. It does come down to the human in control.
Steve Sanghvi -Tire Warmers  November 2, 2009 05:38 PM
If the air temp was at 105 F, Do you still need to use tire warmers?
2 wheel luv -prices?  November 2, 2009 04:58 PM
So...where's the page with the prices?

Email Newsletter
Sign-up for our weekly update.
MotoUSA Mobile
Optimized for your device.
Motorcycle Superstore
Shop with confidence - #1 rated.

Motorcycle USA covers the world of motorcycles with breaking motorcycle news, motorcycle reviews and motorcycle race coverage. When you can’t afford to miss a single event in the world of motorcycling, trust Motorcycle USA to bring you the inside scoop on the two-wheeled world.


Copyright 1996-2012 Motorcycle USA, LLC. All rights reserved.


sc