My 2008 RSTD has about 18K miles and has a whine mosting in 5th gear and most pronounced below 50 mph. I have been around early Willys Jeeps for most of my life and the noise happily reminds me of an early Jeep transfer case, particularly with an aftermarket overdrive is added. Mine really isn't all that loud, even with the stock mufflers. My question is; should I be concerned at all i.e. asking the dealer about changing the clutch basket or is this just a characteristic of the motorcycle and I should love it for what it is just like I love my old Jeeps? I am hoping it is the latter. R.