Order Includes: 1 x Rear Sprocket. Part Numbers: 2XJ-25440-21-00 2XJ-25440-20-00 / Specs: Material: C49 High Carbon Steel. Dimensions: Width: 6 mm / 0.23" , Inner Diameter: 152 mm / 5.98" , Outer Diameter: 208 mm / 8.19" , Circles Diameter: 8.5 mm / 0.33" , Mounting hole Distance: 175 mm / 6.88" , Number of Teeth: 40. We strongly suggest comparing the posted picture to the unit(s) that needs to be replaced..
