Model
Sport Maxx Race 2
Potenza Re050a
Tire Sizes
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The competing tires may come in different numbers of sizes. You may compare the identical and alternative tire sizes.

245/35 R20
245/35 R20
265/35 R20
295/30 R20
305/30 R20
325/30 R21
245/35 R20
205/40 R17
205/45 R17
225/40 R18
235/40 R18
255/35 R18
265/40 R18
295/35 R18
225/40 R19
225/45 R19
235/35 R19
235/40 R19
245/35 R19
245/40 R19
265/35 R19
275/35 R19
285/40 R19
295/30 R19
305/30 R19
245/35 R20
245/40 R20
275/30 R20
285/35 R20
Tread Photos
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Inspect the tread pattern of the rubber.

Sport Maxx Race 2
Potenza Re050a
Price range
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The estimated price range may vary from cheap rubber to expensive or premium tires.

Brand
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Click in the brand name to learn more about their tires and strong sides.

Dunlop
Bridgestone
Category
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Each tire belongs to a specific category. If both tires fall into different categories, choose the type that best fits your needs.

Track & Competition Tires -> Streetable -> Streetable Track & Competition
Performance -> Summer Tires -> Max Performance Summer
Review
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Read a detailed review of each tire if you are still hesitating which option you should choose.

Streetable Track & Competition tires are designed for drivers who participate in racetrack lapping days and car club events*. However they are not recommended for driving in wet conditions where standing water is present and there is the risk of hydroplaning. Additionally, they should not be driven, stored nor serviced in near- or below-freezing temperatures.

*Some tires require shaving tread depths to 4/32" for use on dry racetracks

Read more >

The Potenza RE050A is a Max Performance Summer tire designed to complement the performance of sports cars, sports coupes and sport sedans. While the Potenza RE050 is used as Original Equipment on the supercharged Mercedes-Benz S55 AMG sedan, a Potenza RE050A Scuderia version is used on the 12-cylinder Enzo Ferrari supercar, and a Run Flat version is used on the BMW Z4 sports cars and 5-Series sedans. The Potenza RE050A was developed to provide good traction along with responsive and predictable dry and wet road handling. It is not intended to be driven in near-freezing temperatures, through snow or on ice.

On the outside, the Potenza RE050A features a high grip tread compound molded into an asymmetric tread design. A continuous center rib, large tread blocks and stable shoulder elements provide responsive handling, high-speed stability and traction on dry roads, while circumferential and lateral tread grooves are aimed to pump water out from under the tire's footprint to minimize hydroplaning and aid wet traction. A continuous circumferential rib adjacent to the inside shoulder blocks enhances wear quality to help reduce noise throughout the life of the tire, especially on cars with alignment settings that specify negative camber. Internally, the Potenza RE050A features twin steel belts reinforced by spiral-wrapped nylon to stabilize the tread area and enhance handling, high speed capability and ride quality while minimizing weight. The fabric cord body and hard rubber sidewall filler help blend uniform ride quality with steering response and lateral stability.

Read more >

Tires Scores Compare

How we score

Would You Recommend?

N/A
N/A

Treadwear Performance

N/A
6

Treadwear is vital to many things, not just how often the tires need replacement. Hydroplaning and wet weather are both critical factors that wear down your tire quickly. The warranty covers any defects in what you bought but only for a limited period or when there's minimal tread left on them.

Wet Perfomance

N/A
7.3

The wet performance score is a new thing that tire manufacturers are trying to achieve. The hydroplaning resistance, wet traction, and steering response all influence this new grading system.

Hydroplaning Resistance
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The hydroplaning resistance is measured by the hydroplane depth test and the dynamic aquaplaning test, which measures how much water can be accumulated on the tire's surface before hydroplaning occurs.

7.2
Wet Traction
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Wet traction estimates the level of grip on wet pavement. Tread design with deep grooves dramatically improves confidence when driving in the rain as they channel the water out much better.

7.3
Steering Response
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The vehicle's steering response largely depends on the tread depth, tire width, air pressure, and aspect ratio. Wide high-performance tires are equipped with a continuous center rib providing instant steering response.

8.7

Dry Perfomance

N/A
8.6

Tires with good dry performance should be able to perform smoothly and safely, even when cornering aggressively.

Cornering Stability
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A dynamic cornering test is often used to assess cornering stability under dry conditions.

8.6
Dry Traction
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Dry traction level depends on many factors, including tread design, profile shape, and compounds.

8.6
Steering Response
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The vehicle's steering response largely depends on the tread depth, tire width, air pressure, and aspect ratio. Wide high-performance tires are equipped with a continuous center rib providing instant steering response.

8.7

Comfort Perfomance

N/A
7.1

The comfort performance score is designed to measure the balance between ride quality and noise level.

Ride Quality
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The excellent ride quality means you do not feel the bumps or cracks on the road. Larger tires with thick and deep tread patterns decrease the number of jolts allowing you to glide over bumpy road textures.

7.1
Noise
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If you would enjoy a quiet chat with the passengers while children are sleeping or listening to music, not the sound of tires, definitely pay attention to the noise score.

7.1

Winter Performance

N/A
N/A

Winter Performance score helps us understand if the tire is the appropriate option for winter conditions that your vehicle will face. Dedicated winter tires provide a firm grip when driving through snow and on ice. Performance winter tires boast a higher speed rating and better handling but deliver modestly lower ice and snow traction.

Price range
Tire Sizes
245/35 R20
245/35 R20
265/35 R20
295/30 R20
305/30 R20
325/30 R21
245/35 R20
205/40 R17
205/45 R17
225/40 R18
235/40 R18
255/35 R18
265/40 R18
295/35 R18
225/40 R19
225/45 R19
235/35 R19
235/40 R19
245/35 R19
245/40 R19
265/35 R19
275/35 R19
285/40 R19
295/30 R19
305/30 R19
245/35 R20
245/40 R20
275/30 R20
285/35 R20
Size
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Tire size may be indicated in two formats:
– metric (P255/45R18 103H)
– high flotation (30x9.5 R15 104 F C)
In the metric system, P - stands for the passenger vehicles (LT - for Light Trucks, ST - Special Trailer) with a width of 255 millimeters, aspect ratio (sidewall height) equal to 45% of the tire height. R means it is radially constructed with a diameter of 18 inches. 103 denotes the tire's load index and H determines the speed rating.
In the high flotation system, the first number (30) is the overall diameter of the tire, the second number (9.5) is the width in inches.

245/35 R20 95 Y XL
245/35 R20 95 A XL
Utqg
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Uniform Tire Quality Grade Standards (UTQG) were designed to offer consumers with useful information about the treadwear, traction, and temperature capabilities of their tires in order to make better decisions when purchasing new tires.

80 AA A
140 A A
Max. load
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The maximum weight that a tire can carry is the greatest amount of weight it's designed to bear. Because load carrying capability is dependent on a tire's size and construction, as well as how much air pressure is actually utilized, maximum loads are measured with the tire inflated to an industry standard inflation pressure.

95 (1520 lbs)
95 (1520 lbs)
Max. speed
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The maximum speed that a tire with this type of tread can safely travel for an extended amount of time is indicated by the tire speed rating, which is usually shown by a letter or two.

Y
A
Max inflation pressure
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The highest "cold" inflation pressure that a tire is meant to contain is its maximum inflation pressure.

50 | 22
50 | 27
Tire weight
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The tire weight is determined by the type and size of the tire. As the tread depth of the tire wears down over time, so does its weight.

22
27
Rim width range
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Tires may be used on rims of varying widths while still fulfilling their intended function.

8-9.5""
8-9.5""
Meas. rim width
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The measuring rim width is the common industry minimum rim width at which a tire must be mounted to validate that it meets design specifications.

8/32""
10/32""
Overall diam.
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The overall diameter of a tire is the outer diameter of the tire, measured in the center of the tread. This measurement is made without any load placed on the tire and after it has been properly mounted on its industry-assigned measuring rim and inflated to its test pressure after 24 hours.

26.75
26.75
Revs.per mile
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The revolutions per mile figure indicates the number of times a tire rotates during one mile's travel.

753.93/mi
753.93/mi
Country of origin
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The short name of the country where the given tire was manufactured.

DE
JP
How tires look on cars
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Check out pics from car enthusiasts that mounted these tires on their vehicles.

The Bridgestone Potenza Re050a provides better results for 7 test features out of 10 in total.

When it comes to the UTQG of each tire, the Bridgestone Sport Maxx Race 2 shows its superiority with a rating of 140 A A versus 80 AA A of the Dunlop Sport Maxx Race 2. To learn more about the UTQG, we suggest you read this article.

Specs & Options

Though in general one tire may look superior to the other one, we recommend you compare the available sizes for each model as well. Just choose the tire sizes from the dropdown menu. Upon comparing different sizes, you may find certain differences of both tires.

In terms of market coverage, the Bridgestone Potenza Re050a takes the lead. This tire is available in 22 sizes ranging from 17 inches to 20 inches.

Price

As for the pricing policy, Sport Maxx Race 2 is more expensive than Potenza Re050a.

See how these two tires compare against competitors

Sport Maxx Race 2

Sport Maxx Race 2 N/A

Potenza Re050a

Discussion



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