MOT reliability
Triumph Thunderbird 6t
17 vehicles · 93 completed MOT tests analysed
94%
MOT pass rate
Based on 17 Triumph Thunderbird 6t vehicles and 93 completed MOT tests, the Triumph Thunderbird 6t has an overall 94% pass rate, with an average recorded mileage of 33,348 miles.
17
Vehicles
93
MOT tests
425
Avg miles / year
0.5
Faults per test
0%
Dangerous-fault share
Triumph Thunderbird 6t problem areas
Where faults occur most across all Triumph Thunderbird 6t MOT tests:
-
Other78%
-
Steering27%
-
Brakes2%
-
Tyres, wheels & suspension2%
-
Lamps & electrical2%
Triumph Thunderbird 6t pass rate by age
| Age (years) | Tests | Pass rate |
|---|---|---|
| 1 | 2 | 50% |
| 6 | 1 | 100% |
| 8 | 1 | 100% |
| 10 | 1 | 100% |
| 12 | 1 | 100% |
| 13 | 2 | 100% |
| 17 | 2 | 100% |
| 18 | 3 | 67% |
| 19 | 1 | 100% |
| 20 | 1 | 100% |
Fuel types: Petrol (17)
Most common Triumph Thunderbird 6t MOT faults
These are the faults and advisories recorded most often across Triumph Thunderbird 6t MOT tests:
- Steering headbearing has slight free play (2.2.2) (9 times)
- Rear Roller brake test indicates slight fluctuation of brake effort (3.3.A1d) (5 times)
- Front Roller brake test indicates slight fluctuation of brake effort (3.3.A1d) (4 times)
- Drive chain slightly loose (6.2.1d) (3 times)
- Rear Roller brake test indicates a slightly grabbing brake (3.3.A1b) (3 times)
- Rear wheel bearings have slight free play (2.4.A.2c) (3 times)
- Front suspension has a slightly reduced damping effect (2.3.6c) (2 times)
- Rear Tyre worn close to the legal limit (4.1.3(ii)) (2 times)
- Headlamp aim headlamp deteriorated but function not impaired (1.2.3a) (2 times)
- Wheel alignment slightly misaligned. (2.5.1) (2 times)
- Front wheel bearings have slight free play (2.3.5b) (2 times)
- Rear suspension bush has slight free play (2.4.A2a(i)) (1 times)
- Throttle operating incorrectly does not return (6.2.1f) (1 times)
- Fuel cap missing (7.2.2a) (1 times)
- Locking device(s) not correctly fitted which may make the motor bicycle dangerous to ride (6.2.1h) (1 times)
Triumph Thunderbird 6t pass rate by registration year
| Year | Vehicles | Tests | Pass rate | Avg mileage |
|---|---|---|---|---|
| 2018 | 1 | 1 | 100% | 67,943 |
| 2016 | 1 | 5 | 80% | 34,716 |
| 1999 | 1 | 4 | 100% | 61,654 |
| 1998 | 1 | 3 | 67% | 2,416 |
| 1993 | 1 | 8 | 88% | 38,223 |
| 1979 | 1 | 7 | 100% | 69,029 |
| 1978 | 1 | 6 | 100% | 6,018 |
| 1966 | 1 | 10 | 100% | 30,599 |
| 1965 | 2 | 22 | 100% | 38,762 |
| 1962 | 1 | 7 | 71% | 72,033 |
| 1961 | 1 | 6 | 100% | 21,443 |
| 1960 | 1 | 1 | 100% | 17,985 |
| 1958 | 1 | 3 | 100% | 570 |
| 1956 | 1 | 1 | 100% | 62,796 |
| 1954 | 1 | 1 | 100% | 3 |
| 1951 | 1 | 8 | 88% | 3,963 |
Triumph Thunderbird 6t reliability FAQ
Across 17 Triumph Thunderbird 6t vehicles in our MOT data,
94% pass the MOT (a 6% failure rate), with about
0.5 faults or advisories recorded per test.
The most frequently recorded Triumph Thunderbird 6t MOT issues are:
Steering headbearing has slight free play (2.2.2); Rear Roller brake test indicates slight fluctuation of brake effort (3.3.A1d); Front Roller brake test indicates slight fluctuation of brake effort (3.3.A1d).
The typical Triumph Thunderbird 6t in our data has covered around
33,348 miles.
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