Dunlop Announces Roadsmart IV Sport-Touring Tire

Dunlop has announced its follow up to the popular Roadsmart III tire, the Roadsmart IV, which is said to deliver improved grip, wear and mileage. Rider will be testing these new Sport Touring tires in the near future.

Dunlop Roadsmart IV Tire

From Press Release:

Dunlop Roadsmart IV sets a new Sport-Touring benchmark  

Sport-touring riders have unique demands. They want sport-bike level grip and handling, a compliant ride, and most of all high mileage.  

Dunlop exceeded customer expectations with the Sportmax Roadsmart III® (RSIII), a tire with class-leading mileage and performance that lasted deep into its lifespan. 

Dunlop Roadsmart IV Tire

Now the benefits of the RSIII have been elevated in the all-new Sportmax Roadsmart IV® (RSIV), which joins the RSIII in Dunlop’s sport-touring line. Dunlop’s two-tiered market strategy gives riders the option to choose between the high-performing and now lower-priced RSIII or opt for the class-leading performance of the new RSIV. 

The RSIV establishes a new benchmark for best-in-class mileage and stays close to its peak performance throughout its lifespan. Additionally, the RSIV offers performance upgrades compared to the RSIII, including quicker steering response, more nimble handling, and greater wet-weather performance—grip, stability and overall response.*

Dunlop Roadsmart IV Tire

The RSIV is a completely new tire—new tread patterns, construction, compounds, and profiles. And while the RSIV utilizes Dunlop’s exclusive MT Multi-Tread technology for high mileage and high grip, the tire features innovative new technology that expands the performance envelope. 

Benefits include:

– Increased mileage (up 26% in the rear, up 23% in front**) 

– Class leading grip in wet and dry conditions

– 15% lighter steering 

– More neutral steering and rider feel  

– Quicker warm-up

– More even wear across the life of the tire

– Greater compliance, ride quality, and comfort

Widest Range Available

With the addition of the Roadsmart IV, Dunlop has created the most market-driven sport-touring tire range available in sizes to fit a broad variety of motorcycles. Additionally, Dunlop continues to be the only brand offering sport-touring tires that perform on both “Standard” and “GT” bikes, eliminating the need for two separate versions of its sport-touring tires.

The Roadsmart IV joins Dunlop’s premium performance products by offering what other tires cannot: class-leading mileage, the handling of a full-on sport tire, and tremendous wet-weather grip—all while letting riders enjoy these advantages throughout its lifespan. 

Dunlop Roadsmart IV Tire

To find out more about Dunlop’s new Sportmax Roadsmart IV, go to

*Testing performed at the Sumitomo Rubber Industries, Ltd. proving grounds in Japan on a 2016 Suzuki GSF1250 with tire sizes 120/70ZR17 front and 180/55ZR17 rear. Individual results may vary.

**Testing performed by Dunlop in Japan on a 2018 Honda CB1300 SB with tire sizes 120/70ZR17 front and 180/55ZR17 rear on 40% public roads and 60% highways. Individual results may vary.

Dunlop Roadsmart IV Photo Gallery:


  1. just got a set of road smart IIIs for my RT next set will be the 4s. although I can not imagine how the bike could get 15% easier to turn it takes no effort now. It came with metzlers and the front tire cupped badly quickly. I ran dunlops on my Gold wings for 400,000 + miles on the two bikes and really liked the dunlops for their traction and long life. It is amazing how far tires for motorcycles have come in the last 40 + years I have been riding. Dunlop is my brand of choice for Motorcycle tires.


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