Going to ask this, but think I know the answer    Long bit Looking at one of the projects, I'm using a srad front end so will need to go to electric Speedo, so thinking of b6 sprocket cover with Speedo bit in it but will need to drill and tape the b12 output shaft to put the Speedo bit on the sprocket side. Or here is the question can you use the b6 output shaft in the b12 motor with the b12 gears on the b6??