The new Triumph Speed Triple R, recently presented to the international press during EICMA, rolls on Pirelli Diablo Supercorsa SP tyres, derived directly from the SC (Special Compound) version of the same tread pattern adopted in the Superstock 1000 FIM Cup. The tyre size is 120/70 ZR17 for the front, and 190/55 ZR17 on the rear and offers pure race performance plus road use advantages.
The Pirelli Diablo Supercorsa SP has the same profile as the SC version, providing ‘flat’ areas on the shoulders, increasing contact patch in particular at mid lean when the rider is still opening the throttle and offering an optimal variation of area with lean angle, to give the most progressive response. The advantages are high stability and cornering speed, more confidence inspiring feedback, with a greater feeling of security on road and racetrack plus incredible traction allowing the opening of the throttle earlier than ever. In fact this tyre is characterised by a front casing developed to keep the tyre held on the tarmac even under a low load, helping to keep the best line, and a rear casing designed to improve the pressure distribution on the road surface.
The tread pattern has the same design as SC Racing tyres. The performance-oriented development of land/sea ratio distribution respects FIM Supersport regulations, and most of the tread grooves are concentrated on mid-lean area, leaving crown and shoulders slick-like to improve grip. This design is aimed to give stability avoiding any ‘jelly effect’, to improve the ability to hold a line and to reach the maximum consistency of performance, and thus make the major contribution in reducing the total race time.
The SP compound extends the mileage vs. racing specific compounds, and withstands perfectly for a long time the temperature gradients typical of road variable duty, providing also higher performance on wet ground. The stiffness and friction coefficient compound has been studied to allow all riders to find a very high cornering precision always supported by an outstanding contact feeling without affecting the well-known high stability and absorption behavior of Pirelli Supersport tyres. The most important element of the Diablo Supercorsa SP compound is the unique possibility to guarantee quick warm up comparable to SC version as well as typical road performance like durability, speed stability on long straight lines.
Journalists tested the Pirelli Diablo Supercorsa SP tyres on the new Triumph Speed Triple R machine to great effect at the bike’s recent World Launch at Jerez Circuit.
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