Wow! Any idea why? That seems really low. My Sporty was a stock 883 but even my 10 Road King and my 07 KingPin got much more than 25. I have always gotten atleast mid 30's.
My Road King had stage 1, cam, timing done.
My KingPin had stage 1, and S&S intake.
My Vision is still stock but beats all my previous bikes. The Vic 106 is one heck of a motor and is only getting better with each mile I add.