I need to get a custom part made for my race car and I'm having trouble identifying and getting dimension info on the spline that is used.  The engine is from a 2009 Suzuki GSXR 600 motorcycle and the transmission output shaft has a 25mm OD 13 tooth spline.  I'm trying to get the info on the spline so I can include it in the manufacturing drawing but I'm not having any luck.  Anyone familiar with metric spline?  Can you get me pointed in the right direction?