Gates G-Force Drive Belt 21G4140 Polaris Ranger RZR 900 XP 2011 Size: 1 7/32" x 42 5/8" Outside Circumference (in): 42.625 ; Outside Circumference (mm): 1083 ; Top Width (in): 1.219 ; Top Width (mm): 31 Gates G-Force Belts are the First of a New Generation of Continuously Variable Transmission (CVT) Belts Identical to OEM, G-Force belts are constructed with double or single cog designs to match the OEM belt Replaces OEM part numbers: 3211148, 3211142