Corespun K - 290 TPI (Threads Per Inch)
A composite casing, alternating Polycotton and Kevlar threads (3:1 ratio). The high TPI number, 290 threads per inch, offers an perfect comfort even with high inflating pressures, while the Kevlar threads enhance both cut and puncture resistance
PRB (puncture resistant belting)
A thin, lightweight but extremely strong fabric is placed under the tread in order to achieve highest puncture defense while maintaining low rolling resistance.
Kevlar SiO2 3D compound
Benefits from advanced research on silica (SiO2) surface treatments and on polymers. This, beside the addition of finely chopped KEVLAR fibers, supplies the possibility to set a new standard for high performance tires.
Compressed Warp Casing
This construction is strictly reserved for the highest class of racing tires. These tires employ the highest grade of Corespun casing cord and optimized rubber compounds available. Vittoria's exclusive casing manufacturing process called "Compressed Warp" allows individual threads to act independently, thereby significantly reducing surface deflection and rolling resistance.
Excel can not accept for return tubular tires that have been glued to the rim. More info...
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