This is where it all began, 40 years ago - Polisport started building aftermarket parts so that everyone could enjoy their bikes without worry and with even better looks and improved performance. Performance plastics kick-started its success and are still the core of Polisport. Replacement Pyramid Seat Cover for the Polisport Performance Racing Seat. Anti-slip effect. Great grip and rubbery consistency. Gives the rider the perfect grip to the seat in all conditions. Excellent wear resistance, even when riders use latest generation protective knee guards. Maximum grip even in mud and rain.