2021 Harley-Davidson FLHR Road King — Common Issues & Known Problems
Known Issues & Owner Reports
These are the most commonly reported issues and concerns from owners, mechanics, and community forums for the 2021 Harley-Davidson FLHR Road King.
Plastic Clutch Adjuster Failure
MediumThe 2021 cable clutch uses a plastic self-adjuster that can break or slip, leading to loss of clutch engagement.
Clutch Safety Switch Failure
LowA faulty switch in the left handlebar control can prevent the bike from starting unless it is in neutral.
Rear Suspension Stiffness
LowThe emulsion shocks are often criticized for being too stiff over sharp bumps, even at the lowest preload setting.
Used Buying Inspection Checklist
What to look for when buying a used 2021 Harley-Davidson FLHR Road King.
Left Switch Pack
Check if the bike starts in gear with the clutch pulled; failures in the clutch safety switch are common in early M8 models.
Clutch Cable Adjuster
Inspect the plastic adjuster housing for cracks or signs of being forced, as this is a known weak point on 2021+ models.
Neck Bearings
Check for 'notchiness' or excessive play in the steering head, which can lead to low-speed wobbles.
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