Triumph BONNEVILLE T100 problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
10 owner complaints analyzed
5 distinct recall campaigns
8,104 mi median reported failure mileage
Scope: 2004 to 2024 model years. Data snapshot: . 8 complaints include usable failure mileage.
This selection has limited data. It remains available for lookup but is excluded from search indexing.
Most common problems
Wheels is the most frequently named component, appearing in 3 of 10 complaints (30.0%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Braking behavior | 2 | 20.0% |
| Transmission and shifting | 1 | 10.0% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Wheels | 3 |
| Structure | 2 |
| Electrical System | 1 |
| Equipment | 1 |
| Fuel/Propulsion System | 1 |
| Power Train | 1 |
| Power Train:Manual Transmission | 1 |
| Seats | 1 |
Wheels: 3; Structure: 2; Electrical System: 1; Equipment: 1; Fuel/Propulsion System: 1; Power Train: 1; Power Train:Manual Transmission: 1; Seats: 1
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 8 |
| 25,000 to 49,999 | 0 |
| 50,000 to 74,999 | 0 |
| 75,000 to 99,999 | 0 |
| 100,000 to 149,999 | 0 |
| 150,000 and above | 0 |
Under 25,000: 8; 25,000 to 49,999: 0; 50,000 to 74,999: 0; 75,000 to 99,999: 0; 100,000 to 149,999: 0; 150,000 and above: 0
Under 25,000 miles has the most reports with usable mileage (8). 2 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2005 | 2 |
| 2006 | 1 |
| 2009 | 3 |
| 2013 | 1 |
| 2014 | 1 |
| 2019 | 1 |
| 2025 | 1 |
2005: 2; 2006: 1; 2009: 3; 2013: 1; 2014: 1; 2019: 1; 2025: 1
Pattern summary
Wheels leads the component reports. Braking behavior appears in 2 complaint narratives. Transmission and shifting appears in 1 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 10142757 · 2005-11-15 (November 15, 2005)
AS I WAS PULLING OUT OF A GAS STATION ONTO THE ROAD I HEARD A POP AND FELT A VIBRATION IN THE HANDLEBAR. I PULLED OVER AND EXAMINED THE FRONT WHEEL BECAUSE THAT'S WHERE THE NOISE SEEMED TO COME FROM, EVERYTHING LOOKED FINE WITH THE FRONT WHEEL SO I DROVE OFF AT 35 MPH, THE SPEED LIMIT ON THAT ROAD, AND ABOUT A MILE DOWN THE ROAD THE BIKE FELT WOBBLY SO I PULLED OVER AGAIN AND NOW HAD A FLAT REAR TIRE AND NOTICED ONE OF THE SPOKES HAD BROKEN OFF THE LEFT (BRAKE DISK) SIDE OF THE REAR WHEEL. *NM
Owner-reported narrative. 10,790 miles reported. Look up ODI 10142757 at NHTSA ↗
Owner report 11677706 · 2025-08-01 (August 1, 2025)
The bike will no longer downshift reliably. This jeopardizes the rider because the inability to select a lower gear to slow the motorcycle using engine braking and when arriving at a traffic light or an intersection that requires a lower gear to pull out from a stop safely into traffic. This has not been verified yet by a professional but I have an appointment in a few days from now (on August 5, 2025) with a local Triumph dealer to inspect and correct the issue. After some internet research, this downshifting issue/gearbox failure appears …
Owner-reported narrative. Look up ODI 11677706 at NHTSA ↗
Recalls by model year
All campaigns in the snapshot affecting each model year, including recalls announced years later.
Recall campaigns
Shared campaigns appear once in each affected model year.
| Category | Count |
|---|---|
| 2009 | 0 |
| 2014 | 1 |
| 2017 | 1 |
| 2022 | 2 |
| 2023 | 2 |
| 2024 | 2 |
2009: 0; 2014: 1; 2017: 1; 2022: 2; 2023: 2; 2024: 2