2015 Triumph Thunderbird — MOT History by Age
How cars manufactured in 2015 perform at MOT as they age
Data from official DVSA MOT testing records
Compared to Average at Age 9
✅ 24.3% above average (15872 models compared)
How This Car Ages
Pass rate progression for the 2015 Triumph Thunderbird as it ages.
Bar chart showing pass rate by car age from 3 to 9 years
📊 View as table
| Age | Pass Rate | Tests |
|---|---|---|
| 3 yrs | 88.2% | 212 |
| 4 yrs | 89.0% | 210 |
| 5 yrs | 90.2% | 193 |
| 6 yrs | 88.3% | 274 |
| 7 yrs | 93.8% | 208 |
| 8 yrs | 90.3% | 257 |
| 9 yrs | 86.3% | 358 |
Pass Rate Trend
How the 2015 Triumph Thunderbird pass rate changes as it ages, from first MOT to most recent.
Trend shows declining over 7 years
📊 View as table
| Built | Pass Rate | Tests |
|---|---|---|
| 2024 (9 yrs) | 86.3% | 358 |
| 2023 (8 yrs) | 90.3% | 257 |
| 2022 (7 yrs) | 93.8% | 208 |
| 2021 (6 yrs) | 88.3% | 274 |
| 2020 (5 yrs) | 90.2% | 193 |
| 2019 (4 yrs) | 89% | 210 |
| 2018 (3 yrs) | 88.2% | 212 |
Year-by-Year MOT Results
Common MOT Failures
Top failure categories across all test years for 2015 Triumph Thunderbird, with age trends.
How Failures Change With Age
Comparing failure rates between the youngest and oldest test years.
| Category | At Youngest | At Oldest | Change | Trend |
|---|---|---|---|---|
| Motorcycle lamps and reflectors | 5.2% (3 yrs) | 8.4% (9 yrs) | +3.2%
| 🔴 ↑ |
| Motorcycle structure and attachments | 4.2% (3 yrs) | 1.1% (9 yrs) | -3.1%
| 🟢 ↓ |
| Motorcycle brakes | 4.2% (3 yrs) | 5.6% (9 yrs) | +1.4%
| ⚪ — |
| Motorcycle tyres | 2.8% (3 yrs) | 2.8% (9 yrs) | 0.0%
| ⚪ — |
Other Manufacture Years
Looking for the best year to buy? See the full comparison on the Triumph Thunderbird page →
About This Data
This page shows how Triumph Thunderbird cars manufactured in 2015 perform at MOT as they age. Data spans from 2018 to 2024, covering 1,712 tests. Pass rates naturally decline with age as components wear.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.