Bridgestone S20 EVO Sport Tire First Look

Latest version of S20 features dual-compound front, triple-compound rear construction

Bridgestone has released information on its new-generation S20 sport tire, designated the S20 EVO. Intended to "achieve more sport capability with improved performance on the track" according to Bridgestone, the S20 EVO is claimed to offer improved stability at track speeds along with lighter steering without sacrificing comfort and wear life when compared with the S20.

The front S20 EVO now features a dual-compound tread with a circumferential mono-spiral belt with stiffer five-filament strands in its construction for better stability and wear. The rear S20 EVO now has three different compounds instead of two, with the wire strands going from five filaments to two and becoming less rigid for better compliance and more grip. In order to keep the tire from squirming because of the more compliant construction while also improving lateral stability, the rear tire’s bead filler has been enlarged.

The new S20 EVO is available in usual Z-rated sizes to fit larger sportbikes, as well as H-rated sizes (which only have a single compound) to fit smaller machines like the CBR/Ninja 300s. Prices were not available at press time.

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