09-12 HONDA CRF450R: Polisport Number Plate (WHITE) This is where it all began, 30 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.Polisport&#39;s Durable Gloss Polypropylene (DGP), the first plastic composition for off-road that incorporates maximum gloss and high resistance to breaking.Injection-molde type fit and space for your race number.Inexpensive alternative to O.E.M. replacement parts.