Where can I get a 15 tooth sprocket fot my DS. I don't get out much, but when I do someone always wants to race. I have not raced any raptors yet, but I here they are quick on the holeshot. I hope the 15 tooth sprocket will give me an edge.

 

Try http://www.sprocketspecialists.com/, I just ordered a 37 for the rear.

 

Go with taller gearing to get the holeshot since the DS is already geared way to low.