HUBBARD-
I'm thinking of going with the same ratio 3:37 with the HD 6spd. It'll be going into my 113" set-up when finished. My question to you is; What RPM's do you run at 80 to 90mph? How about 60 mph in 5th? I just don't wanna be all revved up when I'm running down the concrete river. If you can give me a ball park figure I'd appriciate it.
Thanks,
Grover
Yeah, 'er 'uh, Grover,
  80 MPH is 3200 RPM's in 6th.  90 MPH is right at 4000, I think.  60 MPH in 5th is 2600 RPM's.  If I'm incorrect, I'm sure one of the "Professionals" here, will correct me.  BTW, they may correct me, but they won't outrun me!  

 [smiley=huepfenlol2.gif] As I've stated before, I'm now lookin' for 7th, just like I was lookin' for 6th with the 5 speed!  I always tell myself to remember the RPM's @ certain speeds, but I never do.  At any rate, you'll like that set-up with a 6-speed.  2001 SERG's had that gearing at birth.  That, coupled with the fixed fairing, really gave that Bike the edge, in acceleration and aerodynamics.  Later--HUBBARD