Don't know what the Chief means but if your an old Navy Chief, take it from one of your brother Chief's. I've had 5 back surgeries, last August I totaled a 06 Ultra, and fractured my C-6/T-6, and last December they went in and added extra parts and overhauled some stuff in there too. Feb I purchased a New 09 FLHX, and even though I'm slower on my feet, and not as stable getting on and off, I ride every chance I get! Yes I'm not able to ride more than 200-300 miles a day, but I ride! If your ever in Maryland, look up this old seadog, and let's ride!!!!