Vehicle report
Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.
HD-M-1368
HARLEY DAVIDSON: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. THE SPEEDOMETER, ON SOME MOTORCYCLES, FAILS TO MEET THE REQUIRED OFFICIAL MEXICAN STANDARD BY DISPLAYING MPH/MILES INSTEAD OF KPH/KILOMETERS. *PE
Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.