Quiet those who were present today. Am interested in what people think that the result would be. Don't worry - it's not a trick question, and your first instinct may very well be the correct one. Did a series of roll-on tests in 3rd and 6th gear with the 675 vs a 9R, and there was a very clear victor. Oh, some additional information. The 9R is one tooth down on the front sprocket, and so is geared for better acceleration.