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Dunlop Roadsmart IV 130/70ZR17 Front

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130/70ZR17 (62W)

Manufacturer: DUNLOP

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$235.95

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DUNLOP ROADSMART IV

The all-new Roadsmart IV delivers best-in-class handling, grip and mileage. Featuring a completely new tread pattern, construction, compounds, profiles and new technology.

THE NEW STANDARD OF SPORT-TOURING TYRES

Sport-touring riders have unique demands. They want sport-bike level grip and handling, a compliant ride everywhere they go, and most of all high mileage for maximum tire life.

Dunlop exceeded customer expectations with the Roadsmart III (RSIII), a high-performance tire with class-leading mileage.

Just as importantly, the RSIII met the demands of riders who wanted high performance that lasts the life of the tyre.

Now the benefits of the RSIII have been elevated and refined in the all-new Roadsmart IV (RSIV), which joins the RSIII in Dunlop’s sport-touring product line.

Like the RSIII, the RSIV delivers best-in-class mileage—up 26-percent compared to the RSIII—and stays close to its peak performance throughout its lifespan.

Additionally, the RSIV offers performance upgrades in both wet and dry conditions. Compared to the RSIII, the RSIV has quicker steering response for more nimble handling, and greater wet-weather performance—grip, stability and overall response.

THE RSIV IS A COMPLETELY NEW TYRE - NEW TREAD PATTERNS, CONSTRUCTION, COMPOUNDS, PROFILES AND NEW TECHNOLOGY.

PROFILES

Both front and rear tyre profiles are changed significantly, resulting in 15% lighter steering on turn-in with more linear response.

On backroads especially, the RSIV makes it easier to set up a turn, and the steering is more consistent from upright to full lean for more precise rider feedback.

Another benefit: lighter steering decreases rider fatigue so you can stay sharper longer.

TREAD PATTERN

New tread patterns work in harmony with the new profiles, improving tread wear, grip, and handling (especially in wet conditions).

The RSIV’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 tyre, while maintaining superior wet-weather performance.

COMPOUND

To increase mileage and performance, the RSIV compounds feature several new technologies.

Hi SILICA X

Hi Silica X is a new technology that increases the silica content in the tread. This new compounding technique improves silica dispersion to improve the overall flexibility and resilience of the compound, enhancing road adhesion for even better wet grip performance. This new technology helps give the RSIV a minimum of 5% wet handling performance advantage over competitor products, and 10% improvement in wet braking stopping distance over the Roadsmart III.

PERFORMANCE COMPOUND LAYERS PROGRESSIVE

In the RSIV’s tread structure, three compounds with different properties are layered vertically. The top layer features Dunlop’s MT Multi-Tread™ technology that’s made up of two compounds split into three sections (the center compound is designed for high mileage while the side compounds are designed for lateral grip), plus a third base layer compound that efficiently converts energy into heat below the surface. This advanced three-component technology ensures quicker warm-up times, long-lasting, high-performance in wet and dry conditions, and helps the tyre maintain its performance throughout its lifespan.

MT MULTI-TREAD

Now updated with PCL, Dunlop’s patented MT Multi-Tread™ technology in the rear tyre uses a high-mileage compound in the center of the tread for maximum mileage, and high-grip lateral compounds on the shoulders for maximum grip and performance. With PCL, Multi-Tread helps deliver the best of both worlds: class-leading mileage, and cornering grip that rivals purpose-built sport tyres.

FINE CARBON

Fine carbon is utilized in the RSIV due to its smaller particle size. It increases the bonding points with polymers at the molecular level to aid in improved grip, and help the tyre heat up more effectively. Additionally, Fine Carbon helps reinforce the compound, so tire mileage has been enhanced by over 20%.

CONSTRUCTION

The new front & rear construction enhance handling and comfort.

New front tyre constructions are utilized by size to meet specific motorcycle requirements. The 120/70ZR18 utilizes aramid Jointless Band (JLB) construction and the 120/70ZR17 utilizes aramid 2 Cut-Breaker construction for greater compliance, ride quality, comfort and rider feel. In back, Dunlop’s JLB construction also contributes to a very linear feel by reducing tire growth for cooler running, enhanced grip and handling.

SLIM HIGH BEAD APEX

Dunlop Slim High Bead Apex technology utilizes a longer and thinner bead apex, which enhances tyre performance by reducing the rigidity and improving shock absorption of the sidewall.

BEAD PROFILE

With the tyre sidewall stiffness being reduced to enhance absorption, a new bead profile was developed to inhibit float from the bead area on the rim. Additionally, the new bead profile improves traction and slide control by minimizing buckling at full lean angle.

Combined, these two new technologies create more even pressure distribution and improve sidewall stiffness, providing more linear feel at different loads and lean angles, while also improving wet and dry handling.

CAMBER THRUST TUNING

Camber thrust is the turning force generated when a bike is leaned. Dunlop’s exclusive Camber Thrust Tuning technology allows the RSIV to better balance front and rear tyre patterns, construction and profile for nimble and neutral handling.

GT SPEC - for Heavy Duty Motorcycles

The difference from the standard specification is mainly the internal structure.

Adopting a highly rigid “2 CUT breaker” at the front .

Strengthening the frame by taking a 2-ply construction at the rear carcass.

Improving handling, and loading stability in heavyweight machines.

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