Big Dog K-9 Problems by Model Year
NHTSA recorded 5 consumer complaints across the 1 model years of the Big Dog K-9 (2007–2007) that have at least 5 complaints. 2007 has the most, with 5. Across all years, the part named most often is tires (3 mentions). Pick a model year below to see its parts, mileage, recalls and service bulletins.
All K-9 model years
Years with fewer than 5 complaints are not listed. The score compares years of the same model, allowing for the era and for how long each year has collected complaints: 50 is a typical year, lower means fewer complaints. It is not adjusted for sales volume.
| Year | Complaints | Median mi | Recalls | TSBs | Score (50 = typical) | Trend |
|---|---|---|---|---|---|---|
| 2007 | 5 | 15,611 | 1 | 10 | — | Not enough data |
Parts named most often, all years
Counts add up complaint mentions across the listed years. A complaint can name several parts.
- Tires3 60%
- Transmission and drivetrain1 20%
- Electrical system1 20%
Example complaints
One per model year, chosen for length and detail. Personal details are removed. They are consumer reports, not findings.
2007: “I have an avon cobra 250/40/18 tire mounted on my 2007 Big Dog chopper with approximately 2000 miles on it and it has almost split from on side to the other.”
NHTSA complaint #10498420, filed 2013-02, 17,500 milesOther Big Dog models
26 complaintsBig Dog Pitbull
12 complaintsBig Dog Ridgeback
12 complaintsBig Dog Mastiff
6 complaints
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate. Methodology