MOT reliability
Triumph Thunderbird
6,370 vehicles · 67,434 completed MOT tests analysed
89%
MOT pass rate
Based on 6,370 Triumph Thunderbird vehicles and 67,434 completed MOT tests, the Triumph Thunderbird has an overall 89% pass rate, with an average recorded mileage of 21,042 miles.
6,370
Vehicles
67,434
MOT tests
923
Avg miles / year
0.4
Faults per test
2%
Dangerous-fault share
Triumph Thunderbird problem areas
Where faults occur most across all Triumph Thunderbird MOT tests:
-
Other61%
-
Brakes18%
-
Tyres, wheels & suspension14%
-
Lamps & electrical8%
-
Steering8%
-
Seatbelts & equipment5%
-
Body & structure3%
-
Emissions & nuisance3%
Triumph Thunderbird pass rate by age
How the Triumph Thunderbird's MOT pass rate changes as it ages (buckets with 20+ tests).
| Age (years) | Tests | Pass rate |
|---|---|---|
| 1 | 39 | 85% |
| 2 | 85 | 91% |
| 3 | 2,323 | 89% |
| 4 | 2,613 | 90% |
| 5 | 2,752 | 90% |
| 6 | 3,046 | 90% |
| 7 | 3,256 | 91% |
| 8 | 3,635 | 90% |
| 9 | 3,711 | 90% |
| 10 | 3,852 | 88% |
| 11 | 3,891 | 90% |
| 12 | 3,511 | 88% |
| 13 | 3,144 | 88% |
| 14 | 2,925 | 87% |
| 15 | 2,680 | 88% |
| 16 | 2,488 | 88% |
| 17 | 2,239 | 88% |
| 18 | 2,146 | 88% |
| 19 | 2,071 | 88% |
| 20 | 1,998 | 88% |
Fuel types: Petrol (6,364), Diesel (3), Other (3)
Most common Triumph Thunderbird MOT faults
These are the faults and advisories recorded most often across Triumph Thunderbird MOT tests:
- Rear Tyre worn close to the legal limit (4.1.3(ii)) (1,402 times)
- Front Tyre worn close to the legal limit (4.1.3(ii)) (1,380 times)
- Front Tyre worn close to the legal limit (5.2.3 (e)) (974 times)
- Rear Tyre worn close to the legal limit (5.2.3 (e)) (949 times)
- Exhaust noisy (7.1.2) (751 times)
- Exhaust noisy (8.1.1 (a)) (736 times)
- Rear Brake pad(s) close to minimum limit (3.2.A1f(i)) (674 times)
- Rear Brake pad(s) close to minimum limit (1.1.13 (a)) (602 times)
- Drive chain slightly loose (6.2.1d) (550 times)
- Front Roller brake test indicates slight fluctuation of brake effort (3.3.A1d) (528 times)
- Front Brake indicates slight fluctuation of brake effort (1.2.1 (e)) (492 times)
- Front Brake pad(s) close to minimum limit (3.2.A1f(i)) (383 times)
- Front Brake pad(s) close to minimum limit (1.1.13 (a)) (362 times)
- Rear Brake indicates slight fluctuation of brake effort (1.2.1 (e)) (352 times)
- Headlamp aim too high (1.6) (338 times)
Triumph Thunderbird pass rate by registration year
| Year | Vehicles | Tests | Pass rate | Avg mileage |
|---|---|---|---|---|
| 2021 | 1 | 1 | 100% | — |
| 2020 | 1 | 5 | 80% | 689 |
| 2019 | 1 | 6 | 83% | 8,276 |
| 2018 | 23 | 100 | 92% | 9,896 |
| 2017 | 181 | 1,139 | 91% | 11,641 |
| 2016 | 188 | 1,356 | 89% | 13,269 |
| 2015 | 312 | 2,456 | 91% | 16,750 |
| 2014 | 408 | 3,696 | 90% | 16,435 |
| 2013 | 243 | 2,228 | 91% | 18,883 |
| 2012 | 123 | 1,190 | 90% | 16,518 |
| 2011 | 123 | 1,249 | 90% | 19,939 |
| 2010 | 182 | 2,175 | 89% | 21,797 |
| 2009 | 107 | 1,250 | 90% | 20,569 |
| 2008 | 7 | 32 | 78% | 15,895 |
| 2007 | 4 | 19 | 95% | 7,502 |
| 2006 | 5 | 26 | 96% | 23,357 |
| 2005 | 9 | 48 | 88% | 8,655 |
| 2004 | 187 | 2,620 | 90% | 18,551 |
| 2003 | 267 | 3,912 | 90% | 19,341 |
| 2002 | 316 | 4,468 | 91% | 18,172 |
| 2001 | 270 | 3,822 | 91% | 21,008 |
| 2000 | 328 | 4,612 | 89% | 23,790 |
| 1999 | 368 | 4,861 | 89% | 22,604 |
| 1998 | 461 | 5,998 | 88% | 23,191 |
| 1997 | 305 | 3,843 | 87% | 22,154 |
| 1996 | 433 | 5,599 | 87% | 25,606 |
| 1995 | 549 | 7,089 | 86% | 25,563 |
| 1994 | 3 | 27 | 89% | 32,268 |
| 1993 | 2 | 9 | 89% | — |
| 1992 | 4 | 29 | 100% | 11,085 |
| 1991 | 6 | 35 | 94% | 9,327 |
| 1990 | 4 | 13 | 100% | 21,908 |
| 1989 | 5 | 20 | 90% | 36,854 |
| 1988 | 4 | 22 | 86% | 769 |
| 1987 | 1 | 1 | 100% | 770 |
| 1986 | 2 | 12 | 100% | 6,915 |
| 1985 | 8 | 43 | 95% | 20,090 |
| 1984 | 6 | 51 | 96% | 13,107 |
| 1983 | 26 | 215 | 87% | 21,608 |
| 1982 | 40 | 290 | 90% | 26,627 |
| 1981 | 15 | 112 | 91% | 29,101 |
| 1980 | 2 | 10 | 90% | 24,386 |
| 1979 | 6 | 27 | 96% | 20,856 |
| 1978 | 3 | 17 | 100% | 7,004 |
| 1977 | 1 | 4 | 100% | 11,750 |
| 1976 | 5 | 24 | 92% | 21,452 |
| 1974 | 2 | 6 | 100% | 558 |
| 1973 | 1 | 4 | 75% | 29,527 |
| 1972 | 1 | 4 | 100% | 26,078 |
| 1971 | 4 | 7 | 86% | 3,161 |
| 1970 | 3 | 8 | 100% | 38,088 |
| 1967 | 9 | 62 | 94% | 21,940 |
| 1966 | 47 | 320 | 93% | 25,387 |
| 1965 | 33 | 240 | 91% | 24,729 |
| 1964 | 27 | 159 | 91% | 31,935 |
| 1963 | 21 | 99 | 97% | 29,215 |
| 1962 | 21 | 134 | 93% | 21,555 |
| 1961 | 49 | 291 | 94% | 24,785 |
| 1960 | 65 | 341 | 96% | 26,734 |
| 1959 | 37 | 143 | 94% | 22,279 |
| 1958 | 34 | 151 | 93% | 27,037 |
| 1957 | 38 | 129 | 91% | 17,971 |
| 1956 | 21 | 82 | 88% | 19,070 |
| 1955 | 32 | 150 | 91% | 22,560 |
| 1954 | 19 | 73 | 92% | 28,520 |
| 1953 | 15 | 49 | 90% | 28,863 |
| 1952 | 29 | 111 | 86% | 23,655 |
| 1951 | 10 | 34 | 97% | 20,170 |
| 1950 | 18 | 53 | 94% | 24,548 |
| 1949 | 6 | 15 | 93% | 20,362 |
Triumph Thunderbird reliability FAQ
Across 6,370 Triumph Thunderbird vehicles in our MOT data,
89% pass the MOT (a 11% failure rate), with about
0.4 faults or advisories recorded per test.
The most frequently recorded Triumph Thunderbird MOT issues are:
Rear Tyre worn close to the legal limit (4.1.3(ii)); Front Tyre worn close to the legal limit (4.1.3(ii)); Front Tyre worn close to the legal limit (5.2.3 (e)).
The typical Triumph Thunderbird in our data has covered around
21,042 miles.
Compare the Triumph Thunderbird
See how the Triumph Thunderbird stacks up against other Triumph models on MOT reliability:
Check a specific Triumph Thunderbird
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