Gates G-Force C12 Drive Belt 23C3836 Polaris Sportsman XP 550 EPS 2009 2010 2011 Size: 1 7/32" x 39 1/2" Outside Circumference (in): 39.50; Outside Circumference (mm): 1003; Top Width (in): 1.219; Top Width (mm): 31 Gates all-new G-Force C12 belt is a revolutionary breakthrough in CVT belt design The G-Force C12 belt is engineered for drop-in performance, featuring exceptional strength, flexibility, and durability