As usual, you have your mouth open, and your mind closed, out of your wheelhouse yet again, the Yamaha motor I'm using, is in the 600cc bike on the dealers floors today, they are the longest stroke 600's being produced today! They currently build 2, 600cc bikes, the 600R, and the 600R6, the R6 is the high winding version, the 600R being the torqer, that I use. Bob