Just an FYI, I had a high speed vibration in my floorboards after putting on my true duals with V&H basic slipons. I checked everything, muffler placment in the hangers, pipes rubbing, ect. Well today I changed all my fluids and while I was in the primary, I adjusted the clutch. That seems to be the culprit. No More vibration in the floorboards, and engine vibration while under way was less.I know this might not be thefix for all, but it fixed my issues.

2007 RKC
IDS
Fullsac
V&H Basic
PCIII /with help from Steve Handy
SE/AC

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2007 RK Classic
V&h basic
Fullsac conversion
PCIII USB
SE/AC
IDS