2012 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 2012 Harley-Davidson FLHR Road King.
Compensator Failure
MediumSprings in the primary compensator lose tension, resulting in hard starting and knocking noises.
Primary Chain Over-tensioning
HighThe automatic primary chain tensioner can ratchet too tight, putting excessive load on the inner primary bearing and transmission race.
Inaccurate Fuel Gauge
LowThe fuel level float/sender unit often fails or provides erratic readings, showing 'empty' prematurely.
Used Buying Inspection Checklist
What to look for when buying a used 2012 Harley-Davidson FLHR Road King.
Cold Start Clunk
Listen for a violent bang or metallic rattle when starting cold; this indicates a failing compensator.
Steering Head Bearings
Check for 'fall-away' or notched feeling in the handlebars, common on heavy touring models.
Service Records for ABS
If equipped with ABS, verify the brake fluid has been flushed every 2 years to prevent HCU (Hydraulic Control Unit) failure.
Your cart is empty