Here's the crank sprocket. Well, since I bought 2, it's actually a picture of the other one. But I did compare them, and they match. The other fun part is that only half of the keyways (of either one) allow the sprocket to slide onto the crank. I ended up using the 8 degree retarded keyway when putting the chain back on. as it was the one that lined up best. It should have been th 8 advanced, correct?