Sidewall failure is the most common description, in 18% of these reports. Percentages are shares of the 711 reports covering every model year of the Dunlop that include a written account; a single report can describe more than one problem, so they do not total 100%.

Reported problem	This subject	All tire complaints	Relative
Sidewall failure	18%	15%	1.2×
Blowout or sudden deflation	18%	20%	0.9×
Loss of control, rollover or collision	11%	8%	1.3×
Tread or belt separation	10%	13%	0.7×
Bubble or bulge in the tire	9%	6%	1.5×
Cracking or dry rot	8%	9%	0.9×

Mileage at failure

478 of these reports state an odometer reading. The middle report is at 14,950 miles, with 8 in 10 falling between 3,636 and 48,000 miles.

In owners' own words

Verbatim excerpts from complaints filed with NHTSA about Dunlop. Reports are published by NHTSA as filed and are lightly cleaned here only to remove intake codes.

THE VEHICLE WAS USED UNDER NORMAL DRIVING CONDITIONS. THE TREAD OF THE TIRE BEGAN DE-LAMINATING FROM THE TIRE AFTER 40K MILES. FORTUNATELY THE CAR WAS IN FOR SERVICE AND THE MECHANIC FOUND THE DEFECTIVE TIRES BEFORE THEY CAME APART WHILE DRIVING. ALL 4 TIRES WERE REPLACED, BUT THE OLD TIRES REMAIN IN MY POSSESSION.

NHTSA complaint 1002128

THE VEHICLE WAS USED UNDER NORMAL DRIVING CONDITIONS. THE TREAD OF THE TIRE BEGAN DE-LAMINATING FROM THE TIRE AFTER 40K MILES. FORTUNATELY THE CAR WAS IN FOR SERVICE AND THE MECHANIC FOUND THE DEFECTIVE TIRES BEFORE THEY CAME APART WHILE DRIVING. ALL 4 TIRES WERE REPLACED, BUT THE OLD TIRES REMAIN IN MY POSSESSION.

NHTSA complaint 1002129

TIRE FAILURE DUE TO PLY SEPARATION. 50% OF MY TIRES EXPERIENCING THIS PROBLEM. ONE FAILURE WAS CATASTROPHIC, RESULTING IN DAMAGES TO THE TRUCK. THIS EVENT COULD AND HAS CAUSED INJURY AND DEATH FOR OTHERS WHO HAVE EXPERIENCE THIS TYPE OF FAILURE. TIRES HAVE ABOUT 20,000 MILES ON THEM AND PROPER INFLATION AND RECENT BALANCE.

NHTSA complaint 1014310

DUNLOP SP SPORT SIGNATURE SIDEWALL SEPARATION. RISK OF SERIOUS PERSONAL INJURY AND/OR VEHICLE DAMAGE COULD RESULT. THIS APPEARS TO BE A COMMON OCCURRENCE FOR THIS MODEL OF TIRE ON WEB SITES SUCH AS: HTTP://WWW.VEHICLETIRE.COM/COMPLAINT/DUNLOP/SP+SPORT+SIGNATURE.

NHTSA complaint 1016090

Complaints are voluntarily submitted to the NHTSA Office of Defects Investigation and are not verified by NHTSA; they represent owner-reported problems, not proven defects. Counts can be useful as a relative quality signal across comparable tires or vehicles.

Specs

Brand	Dunlop
Model	SP Sport Maxx
Season	all-season
Type	truck-suv
UTQG treadwear	N/A
UTQG traction	N/A
UTQG temperature	N/A
Mileage warranty	N/A
Noise (dB)	N/A
Introduced	N/A

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Available sizes (0)

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Dunlop SP sport maxx: what the numbers tell you

Manufacturer treadwear data for the SP Sport Maxx is not publicly listed. This is common for OEM-only or track-day tires that don't carry a US treadwear warranty. No mileage warranty is published for this tire, which is typical for performance summer and track-day rubber where the manufacturer doesn't make wear-life claims.

Cabin noise data for this tire is not published by the manufacturer. As a all-season tire built for the truck-suv segment, the SP Sport Maxx is positioned against direct rivals within the same category. Comparing it to a tire in a different category (e.g. summer vs all-season) makes the spec sheet misleading because the design targets are not the same.

Dunlop SP Sport Maxx The Dunlop SP Sport Maxx performance summer tire offers a balance of wet and dry traction, a quiet ride and the precise handling you’d expect from a quality performance tire. With race-ready performance and reliable summer traction, you should turn to the SP Sport Maxx. Other features include: The SP Sport Maxx is ideal for luxury sporty vehicles like coupes and sedans. For race-proven braking, accelerating and steering on wet and dry roads, this tire features a sporty directional tread pattern and cutting edge tread compound. Thanks to its clever tread design, you’ll experience a smooth, consistent, precise and quiet ride. With Dunlop’s Touch Technology, air pressure spreads evenly across the tire so more rubber touches the road, giving you tactile feedback for precision driving. Its directional tread pattern also ejects water away from the contact patch, reducing the risk of hydroplaning on soaked roads. This tire features Dunlop’s optimized blend of silica and a high-structured carbon black tread compound, giving you glue-like grip. It also has large independent shoulder blocks for razor sharp steering response. This tire is constructed with twin steel belts reinforced by Dunlop’s Jointless Band (JLB) spirally wrapped nylon and a rayon cord casing. Built in 19’’-21” diameters, the Sport Maxx fits a range of vehicles and is even the OEM tire on some Ford, Volkswagen, BMW, Audi and Mercedes-Benz vehicles. A

For an apples-to-apples comparison against direct rivals, see the comparison pages linked from this tire's brand index.

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