The latest edition of the Dunlop Sportmax Roadsmart line of sport-touring motorcycle tires is now available. Dunlops makes a wide range of claimed improvements with the Dunlop Sportmax Roadsmart IV tire, so let’s go over them.
The Dunlop Sportmax Roadsmart IV is an upgrade from the Roadsmart III, not a replacement. You will still be able to get the IIIs at a lower price.
There are three tiers of improvements for the IV compared to the III, according to Dunlop.
Steering response and nimbleness in the dry are increased five percent.
Grip, nimbleness, and stability in the wet are increased 10 percent.
The front tire on the IV gets 23 percent more longevity than the III, while the rear is increased 26 percent.
The Roadsmart IV is a dual-compound design. The center of the tire is focused on high-mileage, while the sides prove more lateral grip. There is also a third compound below the outer compounds. It is designed to retain heat for quick warmup.
Dunlop’s proprietary Hi Silica X is used to improve wet grip, while fine carbon is there for grip in the dry, and to increase mileage. The fine carbon also aids in warming up the Roadsmart IV rapidly.
A profile change is responsible for the increase in agility. According to Dunlop, the Roadsmart IV has 15 percent lighter steering on turn-in, compared to the III.
The Dunlop Sportmax Roadsmart IV has the latest groove technology. Dunlop boasts that the Roadsmart IV’s “optimized groove angles and strengthening of its tread rigidity through strategically placed thinner tread grooves contribute to more even wear across the life of the tire, while maintaining superior wet-weather performance.” Also, the tread patterns are matched to balance performance. If you want maximum performance, you won’t want to mix the Roadsmart IV with any other tire.
There is a new bead profile to improve cornering. The stiffness of the sidewall has been reduced to help with impact absorption. To keep the tire stable during cornering, a new bead profile prevents tire buckling at high lean angles.
The Dunlop Sportmax Roadsmart IV tires come in most popular sizes. However, if your motorcycle requires narrower tires, the Roadsmart III has sizes not offered for the IV.
Dunlop Sportmax Roadsmart IV Sizes and PricesFront
Aprilia Tuono 660 Factory + Steve ’Stavros’ Parrish
byMotos and Friends by Ultimate Motorcycle
Hello everyone and welcome once again to Ultimate Motorcycling’s weekly podcast—Motos and Friends. My name is Arthur Coldwells.
Our first segment features the new Aprilia Tuono 660 Factory. Senior Editor Nic de Sena brings us his report on the flagship version of Aprilia’s upright middleweight machine. He gives us insight into whether it’s worth spending the extra money on the Factory version, and also of course, whether this sporting Aprilia is really the motorcycle for you.
The next guest segment of Motos and Friends is brought to you by the faster and most technologically advanced, 2023 Suzuki Hayabusa—one of the most iconic sportbikes ever. Check it out in person at your local Suzuki dealer now, or visit suzukicycles.com to learn more.
In this segment, Associate Editor Teejay Adams chats with (arguably) one of the most interesting Suzuki race riders of all time. the iconic RG500 alongside teammate double World Champion Barry Sheene. The two were almost as famous for their exploits off-track, as for their success on it. Those were the days! Steve also raced the Isle of Man TT for about ten years where he won 13 Silver Replicas, and got a podium finish. His insight into that particular brand of mayhem are fascinating.
But there’s waaay more to Steve Parrish than his motorcycle racing. He is also the most successful Semi-Truck racer ever, and, little known piece of useless trivia—he’s my birthday twin: 24th February. He is a natural entertainer and you can’t miss his recounting of the world’s most entertaining—and arguably terrifying—double-decker bus ride ever. If any of you were actually on that hell-ride then we’d love to hear from you!