Compatible With:-Full metal are the best selling brake pads we offer.-These brake pads are made of a high density material consisting of copper, carbon, tin, and lead.-They have a dot coefficient of friction (c.F) rating of FG at 250 degrees 0.44-0.45 and at 600 degrees 0.45-0.50.- These will provide riders with a longer brake pad life than semi-metallic and will outlast most competitors compounds.- They have excellent performance and stability at all temperatures as well as reduced corrosion.1998 Polaris Big Boss 6x6 500 500cc1999 Polaris Big Boss 6x6 500 500cc