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Dunlop Sportmax Roadsmart IV 180/55R17 73W BSW Tire

Motorcycle - Street

Rims Not Included

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8.6 Excellent

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About the Manufacturer:

Dunlop Tires, founded in 1889 in Ireland, is a historic brand synonymous with pioneering tire technology and high-performance. Operating globally, Dunlop is renowned for its rich motorsport heritage and cutting-edge innovation, offering superior grip, responsive handling, and durability for passenger cars, motorcycles, and specialist racing vehicles. Dunlop boasts an unparalleled legacy in motorsport, having equipped the winning car in more 24 Hours of Le Mans races than any other tire manufacturer, showcasing its endurance and performance prowess.

The Dunlop brand is relaunching under Falken as a Tier 1 product in December 2025, starting with the Blue Response A/S line.

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Specifications

Specs

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Description

Sidewall

BSW

Describes the sidewall appearance. Examples: BSW= Black Side Wall, WSW = White Side Wall, OWL = Outlined White Letters.

Load Index

The load index (LI) is a 2- or 3-digit number that correlates to the maximum amount of weight the tire can carry. For example, a tire with a load index of 87 indicates that the tire can carry a maximum load of 1,201 lbs. In this particularly example, 4 tires (each with a load index of 87) can carry a maximum of 4,804 lbs. Refer to your vehicle owner's manual for the recommended minimum load index.

Speed Rating
Tires speed rating

Speed rating (SR) indicates the maximum speed the tire can achieve. Higher speed ratings are typically associated with better handling capabilities. Refer to your vehicle owner's manual for the recommended minimum speed rating.

Max Single Load(lbs)

805

The maximum load this tire will support. Remember to multiply this number by the number of tires installed on your vehicle to get the maximum carrying capacity. This number is directly related to the Load Index.

Max Single Air Pressure(PSI)

The maximum air pressure this tire will support. This does not represent the amount of air pressure your tires should have at all times. Consult with your owner's manual to determine the best air pressure you should use for your vehicle.

Tread Depth

9.0

The amount of tread on the tire. Once the tire is worn to 2/32nds, it is considered fully used and should be replaced at that time. Most tires will have tire indicators in the grooves of the tire to help you determine when the tires are worn down to 2/32nds.

Tread Design

Directional

The pattern of the grooves, lugs, voids, and sipes on a tire's surface. This design affects the tire's traction, handling, and noise characteristics. Common types include symmetrical (uniform pattern across the tire), asymmetrical (different patterns on the inside and outside for varied road conditions), and directional (designed to rotate in one direction for improved wet traction and hydroplaning resistance).

Manufacturer Part Number

45253322

Manufacturer part number (sku)

Financing

You can pre-qualify to finance your tires, or you can simply choose Affirm at check-out. Fill out your information and choose the monthly payment that works best for you!

Select 3, 6 or 12 monthly payments, with rates from 10% - 36% APR. 18 months financing available for orders over $1000.00

Checking your eligibility won't affect your credit. You will receive an immediate answer from Affirm.

Affirm has no hidden fees or costs and is completely secure.
Quick and easy, real tire financing, real fast! You can apply in advance and know you can shop for tires when you are ready.

To learn more visit Buy With Affirm or read their convenient Affirm FAQ's. All credit decisions are made by Affirm.

To contact Affirm regarding your account, please call 1-855-423-3729.

No hidden fees

Affirm has no hidden fees or costs and is completely secure

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With a small down payment, and easy payments you can lease your tires. Payments are coordinated with your payday. Read more here about how Katapult works.

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Size Details

Size	Load Index/ Speed index	UTQG	Overall Diameter	Section Width	Rim Width Min	Rim Width Max	Rim Width Meas	Tread Depth (in)	Max Single Air Pressure (PSI)	Max Single Load (lbs)	Max Dual Air Pressure (PSI)	Max Dual Load (lbs)	MFG #
120/70R17	58W	-	-	-	-	-	-	-	-	-	-	-	45253301
120/70R17	58W	-	23.7	-	-	-	-	5.0	42	520	-	-	45253901
120/70R18	59W	-	-	-	-	-	-	-	-	-	-	-	45253307
120/70R19	60W	-	-	-	-	-	-	-	-	-	-	-	45253308
120/70R19	60V	-	-	-	-	-	-	5.0	42	551	-	-	45253921
120/70R19	60V	-	-	-	-	-	-	5.0	42	551	-	-	45253321
160/60R17	69W	-	-	-	-	-	-	-	-	-	-	-	45253302
170/60R17	72W	-	-	-	-	-	-	-	-	-	-	-	45253303
180/55R17	73W	-	-	-	-	-	-	-	-	-	-	-	45253304
180/55R17	73W	-	-	-	-	-	-	9.0	42	805	-	-	45253922
180/55R17	73W	-	-	-	-	-	-	9.0	42	805	-	-	45253322
190/50R17	73W	-	-	-	-	-	-	-	-	-	-	-	45253305
190/55R17	75W	-	-	-	-	-	-	-	-	-	-	-	45253306