Buell 1125R Problems by Model Year
NHTSA recorded 45 consumer complaints across the 2 model years of the Buell 1125R (2008–2009) that have at least 5 complaints. 2009 has the most, with 39. Across all years, the part named most often is electrical system (33 mentions). Pick a model year below to see its parts, mileage, recalls and service bulletins.
All 1125R 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 |
|---|---|---|---|---|---|---|
| 2009 | 39 | 6,235 | 0 | 2 | Not compared (fewer than 3 comparable model years) | Stable |
| 2008 | 6 | 4,000 | 2 | 5 | — | Not enough data |
Parts named most often, all years
Counts add up complaint mentions across the listed years. A complaint can name several parts.
- Electrical system33 59%
- Engine cooling6 11%
- Transmission and drivetrain4 7.1%
- Exterior lighting4 7.1%
- Vehicle speed control3 5.4%
- Engine3 5.4%
- Brakes2 3.6%
- Wheels1 1.8%
Example complaints
One per model year, chosen for length and detail. Personal details are removed. They are consumer reports, not findings.
2009: “I was getting onto the highway via an on ramp and started accelerating when the engine started to sputter and backfire then it just lost all power and rolled to a stop. Instrument cluster showed voltage error and about 9 volts. Got the motorcycle back and it died about five miles down the road with same problem. Harley davidson had my bike for the whole summer!”
NHTSA complaint #10462420, filed 2012-06, 4,800 miles2008: “2008 Buell 1125R clutch fluid leaks out weep hole and causes the loss of clutch which makes control of bike dangerous, harley has had this problem and knows about it and has at this time done nothing to fix, if bike is under warranty they fix it , if out of warranty they do nothing to protect your safety.”
NHTSA complaint #10349918, filed 2010-08, 1,060 milesOther Buell models
44 complaintsBuell Firebolt XB9R
18 complaintsBuell XB12R
14 complaintsBuell S3 Thunderbolt
10 complaintsBuell S1 Lightning
7 complaintsBuell XB12S
7 complaintsBuell X1 Lightning
5 complaintsBuell XB12X
5 complaints
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate. Methodology