12/26/2023 0 Comments Pirelli diablo rosso iv review![]() The front is divided into three sections, with the center section covering a full 50% of the tread width. If we stick to the exterior for now, the tread compounds of both the front and rear were updated. The construction of the Rosso IV underwent some major revisions, too. Because the front tire does most of the water-displacement work in the rain, the rear tire actually has the void/fill ratio reduced without compromising wet weather grip, which Pirelli claims improves both wear characteristics and high-speed stability. Once the tire is leaned over more than 35°, it essentially becomes a slick since lean angles of that degree do not occur in the rain. When combined with the new tread pattern, while retaining the signature flash pattern, Pirelli has optimized the placement of the grooves, reducing the void/fill ratio by 30% compared to the Rosso III. Once leaned over, the curve of the profile becomes more gradual to increase the contact patch for improved traction. ![]() Starting with the profile and using information gathered from its time as the official tire of World Superbike, the engineers created a multi-radius front carcass, giving the tread center a sharper profile to make turn-in quicker. For improved grip, Pirelli’s engineers adjusted the front tire’s profile and construction.
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