NHTSA recall 77V164000
Service brakes, hydraulic › Foundation components › Master cylinder
Harley-Davidson 1200CC FX and 2 more
The defect
An incorrect o-ring may have been installed in the rear brake master cylinder. This could allow air leakage into the rear brake system, possibly resulting in loss of rear braking effectiveness.
The remedy
Dealer will inspect and, if necessary, install the correct master cylinder o-ring without charge to owner.