Radiator Louvers. Polisport has an ample range of plastic replica parts which cover every top brand in the off-road market, but there was one part missing - Radiator Louvers. The radiator is an essential, and one of the most fragile parts of your bike, so it's crucial to protect it. Polisport is adding these new parts to its range, covering the main brands and the most recent models on the off-road market. Constructed of Polisport's Durable Gloss Polypropylene (DGP), the first plastic composition for off-road that incorporates maximum gloss and high resistance to breaking. Resistant and durable polypropylene part. Provides the perfect airflow to the radiator. Straight-forward installation. Perfect fit. Sold as a pair. Note: Mesh for radiator louvers sold as spare part.