My 07SM 865CC came stock with the 18T. I've been running the 19 for over a year now and really like it. I don't know about jumping outta the hole, but I can easily hit above 80mph in 3rd, over 100mph in 4th, not redlining either one, I haven't really pushed 5th to hard cause of traffic but I've seen above 110 very easily and on several occasions.

Also on a side by side comparrison my 04AM 790CC has a 18T and gets along just fine, haven't pushed her to hard yet but the rpm's seeem to be about 500'ish more for the same indicated speed.

Normally I just take it easy but... there are times when I like to get "spirited"!

I say go ahead and give it a try, sprockets are cheap and easy to change out.
I may end up putting a 16T on the SM and a 19T on AM.

Last edited by Leithal; 08/20/2013 12:02 PM.