Pirelli Diablo Rosso IV 140/70R17 M/C 66H TL

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THE SUPERSPORT DUAL COMPOUND REAR TYRE FOR ROAD USE

The rear tyre matches perfectly with the Pirelli Rossi IV front tyre, showing an outstanding versatility to very diverse riding conditions.
Differentiated rear tyres development based on the size to perfectly fit the requirements of each motorcycle and riding style
Superb grip while braking, thrust boost in extreme lean angles and brilliant traction exiting the corner
Lightening handlebar response to rider inputs and smooth feedback while cornering
WSBK-derived structures and contours
Silica-enriched multi-compound rear tyre
Best performance on road use, on both wet and dry roads

DUAL Compound for sizes up to 190/50ZR-17

Structure

DIABLO ROSSO™ IV rear tyres up to 190/50ZR-17 size feature a Rayon 2-wire strand structure. According to front structure, chord stiffness has been raised by more than 30% versus DIABLO ROSSO™ III reducing the end-count and therefore more space is available for the compound to perform. Grip and wear regularity benefit from it.

Contour

DIABLO ROSSO™ IV raised specific Rayon cord stiffness, obtained thought larger section of more twisted strands allows a lower end-count, adapted along the contour, differentiating stiffness lean angle by lean angle, supporting the dynamic needs for an outstanding riding experience. These characteristics deliver to the rider a great contact feeling alongside a solid stability sensation.

Compounds

A dual compound front tyre is coupled with Cap&Base rears: a dual compound for low to medium displacement motorcycles up to 190/50ZR-17 and a tri-compound for Superbike and Hypernaked machines sizes 190/55ZR-17 to 200/55ZR-17.

The full silica dual compound rear offers quick warm up, significant grip level regardless of lean angle (also in wet conditions) and riding smoothness. In relation with the dimension of the tyre, and therefore of the contact patch, a dual compound with less compound discontinuity ensures the best stress distribution and therefore delivers riding feeling and wear uniformity.

Tread Pattern

As a distinctive sign for PIRELLI sporty products, DIABLO ROSSO™ IV tread pattern is developed around the FLASH™ icon: a couple of centre grooves which provide directional stability and ensures wear stability. FLASH™ is also accountable for water draining from the centre to outside the contact patch when upright. FLASH™ tails of varied length are distributed surround the centre design, outlining mid-lean grooves. Tails are a constitutive element of the tyre behaviour, providing the right tyre flexibility and efficient water evacuation and an absolute wear uniformity. Tread Pattern design of DIABLO ROSSO™ IV with slicker mid-lean areas evolves the DIABLO ROSSO™ III one, giving support at lean angles where water drainage is useless, which means over 35°. It is characterised by a large slick area on shoulders, which results in excellent grip and line holding while cornering at extreme lean angles. Besides the family feeling, tread pattern layout plays a relevant role in DIABLO ROSSO™ IV performance.