Good sprocket, but not a good idea for 2013 RMZ 450
Good high quality sprocket, but I do not recommend it for a 2013 RMZ 450. It brings the chain too low and it wears into the case. If you add enough spacers to keep the chain from grinding he case, the chain gets out of alignment with the rear sprocket. Again, it’s a well made sprocket, but it does not work on a 2013 RMZ 450.