Description:

Replaces OEM Part: Polaris 3221043. Compatible with: 1987-1992 Polaris Trail Boss 250, 2011-2012 Polaris Trail Boss 325. Pitch: 520. Kit includes 1 Front 11 tooth drive sprocket, and 1 Rear 42 tooth drive sprocket; Sprocket Material consists of SAE 1023 structural carbon steel. Hub Inner Diameter 21.7mm; Hub 2 (ID) 25mm; Hub Inner Diameter 100mm; Mounting Hole (ID) 8.5mm; Distance Between Mounting Holes (ID) 116mm.