Description:

Replaces OEM Part: Yamaha 17D-25449-50-00, 1C3-25449-00-00, 1C6-25449-20-00. Compatible with: 2005-2011 Yamaha YZ250. Pitch: 520. Kit includes 1 Front 13 tooth drive sprocket, and 1 Rear 49 tooth drive sprocket; Sprocket Material consists of SAE 1023 structural carbon steel. Hub Inner Diameter 22mm; Hub 2 (ID) 25mm; Distance Between Mounting Holes (ID) 42mm; Hub Inner Diameter 136mm; Mounting Hole (ID) 8.5mm; Distance Between Mounting Holes (ID) 156mm.