MOT reliability
Triumph T120 bonneville
60 vehicles · 318 completed MOT tests analysed
94%
MOT pass rate
Based on 60 Triumph T120 bonneville vehicles and 318 completed MOT tests, the Triumph T120 bonneville has an overall 94% pass rate, with an average recorded mileage of 19,396 miles.
60
Vehicles
318
MOT tests
408
Avg miles / year
0.2
Faults per test
0%
Dangerous-fault share
Triumph T120 bonneville problem areas
Where faults occur most across all Triumph T120 bonneville MOT tests:
-
Other105%
-
Steering17%
-
Brakes3%
-
Seatbelts & equipment3%
-
Visibility2%
Triumph T120 bonneville pass rate by age
| Age (years) | Tests | Pass rate |
|---|---|---|
| 1 | 3 | 100% |
| 2 | 2 | 100% |
| 3 | 1 | 100% |
| 4 | 1 | 100% |
| 5 | 1 | 100% |
| 10 | 1 | 100% |
| 11 | 3 | 67% |
| 12 | 1 | 100% |
| 13 | 3 | 100% |
| 14 | 4 | 75% |
| 15 | 3 | 100% |
| 16 | 3 | 67% |
| 17 | 3 | 67% |
| 18 | 4 | 75% |
| 19 | 3 | 100% |
| 20 | 2 | 100% |
Fuel types: Petrol (60)
Most common Triumph T120 bonneville MOT faults
These are the faults and advisories recorded most often across Triumph T120 bonneville MOT tests:
- Front wheel bearings have slight free play (2.3.5b) (3 times)
- Rear wheel bearings have slight free play (2.4.A.2c) (3 times)
- Steering headbearing has slight free play (2.2.2) (3 times)
- Steering movement slightly 'notchy' (2.2.1b) (3 times)
- Drive chain slightly loose (6.2.1d) (3 times)
- Front shock absorber has light misting of stanchion (2.3.3) (3 times)
- Steering movement slightly 'notchy' (2.2.1a) (2 times)
- Headlamp at least one does not illuminate on dipped beam (1.2.2a(i)) (2 times)
- Horn not working (1.7.3a) (2 times)
- Wheel alignment slightly misaligned. (2.5.1) (2 times)
- Rear suspension bush has slight free play (2.4.A2a(i)) (2 times)
- Stop lamp does not illuminate immediately a brake applies (1.3.1a) (2 times)
- Front Roller brake test indicates slight fluctuation of brake effort (3.3.A1d) (2 times)
- Exhaust noisy (7.1.2) (2 times)
- Oil leak (2 times)
Triumph T120 bonneville pass rate by registration year
| Year | Vehicles | Tests | Pass rate | Avg mileage |
|---|---|---|---|---|
| 2020 | 2 | 2 | 100% | 24,113 |
| 2018 | 1 | 1 | 100% | — |
| 2017 | 1 | 1 | 100% | 1,943 |
| 2016 | 1 | 2 | 100% | 26,454 |
| 2015 | 1 | 3 | 100% | 8,992 |
| 2014 | 2 | 7 | 100% | 1,716 |
| 1998 | 1 | 2 | 50% | 2,763 |
| 1997 | 1 | 13 | 92% | 32,807 |
| 1993 | 2 | 24 | 88% | 13,473 |
| 1991 | 1 | 2 | 50% | 2,110 |
| 1982 | 1 | 1 | 100% | 2,508 |
| 1978 | 1 | 3 | 100% | 14,297 |
| 1977 | 1 | 3 | 100% | 24,017 |
| 1973 | 2 | 8 | 88% | 29,999 |
| 1972 | 6 | 21 | 90% | 21,590 |
| 1971 | 1 | 10 | 100% | 193,301 |
| 1970 | 9 | 65 | 94% | 21,034 |
| 1969 | 3 | 8 | 100% | 6,484 |
| 1968 | 4 | 26 | 100% | 18,607 |
| 1967 | 3 | 13 | 92% | 7,585 |
| 1966 | 3 | 14 | 100% | 9,808 |
| 1965 | 3 | 28 | 93% | 20,055 |
| 1964 | 3 | 17 | 94% | 8,316 |
| 1962 | 3 | 9 | 89% | 8,768 |
| 1961 | 2 | 25 | 100% | 40,354 |
| 1960 | 2 | 10 | 100% | 14,456 |
Triumph T120 bonneville reliability FAQ
Across 60 Triumph T120 bonneville vehicles in our MOT data,
94% pass the MOT (a 6% failure rate), with about
0.2 faults or advisories recorded per test.
The most frequently recorded Triumph T120 bonneville MOT issues are:
Front wheel bearings have slight free play (2.3.5b); Rear wheel bearings have slight free play (2.4.A.2c); Steering headbearing has slight free play (2.2.2).
The typical Triumph T120 bonneville in our data has covered around
19,396 miles.
Compare the Triumph T120 bonneville
See how the Triumph T120 bonneville stacks up against other Triumph models on MOT reliability:
T120 bonneville vs Toledo
T120 bonneville vs Unknown
T120 bonneville vs 2000
T120 bonneville vs 1500
Check a specific Triumph T120 bonneville
Enter a registration to see that exact vehicle's full MOT history, advisories and recurring faults.
See all Triumph models · Learn about common MOT failures · what an MOT checks