AI-generated · grounded in NHTSA data
Reliability & 5-year cost of ownership — 2009 Triumph Bonneville T100
Overall rating NHTSA-grounded
Above average
Estimated 5-year repair + maintenance cost: $2,000–$3,500
The 2009 Triumph BONNEVILLE T100 shows robust reliability with minimal recalls or complaints data, indicating an above-average ownership experience.
Most-common failures
| Part | Typical mileage | Cost range | Frequency |
|---|---|---|---|
| electrical system | 30,000–50,000 miles | $200–$600 | rare |
Scheduled maintenance to budget
Routine items every owner should plan for.
- Oil and filter changes
- Brake fluid replacement
- Coolant system check
- Drive chain adjustment
- Valve clearance check
- Tire replacement
- Spark plug replacement
Warning signs to watch for
Symptoms that signal a major upcoming repair.
- Dimming headlights
- Intermittent electrical failures
- Starting issues
- Unusual engine noises
- Irregular idling
Generated by gpt-4o on 8/23/2026. Cost ranges are conservative estimates that account for typical regional variation.