# 1999 HARLEY-DAVIDSON HARLEY DAVIDSON — SUSPENSION:REAR
> NHTSA complaint `188570` · 1999-12-13 · Harley-Davidson Motor Company
## Severity
- **Deaths:** 0
- **Injured:** 1
- **Fire:** No
- **Crash:** Yes
- **Police report:** Yes
- **Medical attention:** No
- **Vehicle towed:** No
## Vehicle
- **Make:** HARLEY-DAVIDSON
- **Model:** HARLEY DAVIDSON
- **Year:** 1999
- **Manufacturer:** Harley-Davidson Motor Company
- **Component:** SUSPENSION:REAR
- **Speed:** 72 mph
## Narrative
INSTABILITY OF VEHICLE IN HIGH WIND SITUATION, CAUSED BY FRAME AND SWING ARM FLEXTION AND SUSPENSION SOFTNESS DUE TO USE OF TO LITTLE (OEM RECOMMENDED 15PSI) AIR PRESSURE IN FRONT AND REAR SUSPENSION SYSTEM.  IN A HIGH WIND SITUATION THE FRONT END GOES INTO A "HIGH SPEED WOBBLE" WHICH GENERALLY RESULTS IN A CRASH. *AK
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*Source: [NHTSA ODI](https://www-odi.nhtsa.dot.gov/downloads/) · AI Analytics · CC0 1.0*