Triumph Bonneville l
Based on 168 Triumph Bonneville l vehicles and 1,171 completed MOT tests, the Triumph Bonneville l has an overall 89% pass rate, with an average recorded mileage of 21,501 miles.
Triumph Bonneville l problem areas
Where faults occur most across all Triumph Bonneville l MOT tests:
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Other86%
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Steering15%
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Brakes10%
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Lamps & electrical6%
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Emissions & nuisance4%
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Tyres, wheels & suspension3%
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Body & structure3%
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Identification & plates1%
Triumph Bonneville l pass rate by age
How the Triumph Bonneville l's MOT pass rate changes as it ages (buckets with 20+ tests).
| Age (years) | Tests | Pass rate |
|---|---|---|
| 1 | 4 | 75% |
| 2 | 2 | 100% |
| 3 | 19 | 95% |
| 4 | 24 | 92% |
| 5 | 24 | 83% |
| 6 | 22 | 100% |
| 7 | 23 | 96% |
| 8 | 26 | 92% |
| 9 | 24 | 92% |
| 10 | 25 | 84% |
| 11 | 21 | 86% |
| 12 | 21 | 95% |
| 13 | 20 | 95% |
| 14 | 22 | 86% |
| 15 | 16 | 94% |
| 16 | 18 | 89% |
| 17 | 16 | 81% |
| 18 | 11 | 100% |
| 19 | 9 | 89% |
| 20 | 8 | 100% |
Fuel types: Petrol (167), Diesel (1)
Most common Triumph Bonneville l MOT faults
These are the faults and advisories recorded most often across Triumph Bonneville l MOT tests:
- Front Roller brake test indicates slight fluctuation of brake effort (3.3.A1d) (16 times)
- Rear Roller brake test indicates slight fluctuation of brake effort (3.3.A1d) (15 times)
- Exhaust noisy (8.1.1 (a)) (15 times)
- Drive chain slightly loose (6.2.1d) (14 times)
- Steering headbearing has slight free play (2.2.2) (11 times)
- Wheel alignment slightly misaligned. (2.5.1) (9 times)
- Front Tyre worn close to the legal limit (4.1.3(ii)) (9 times)
- Roller brake test The less effective brake control does not achieve an efficiency of 25%. (3.3.A2b) (8 times)
- Nearside Front shock absorber has light misting of stanchion (2.3.3) (7 times)
- Offside Front shock absorber has light misting of stanchion (2.3.3) (7 times)
- Front Headlamp aim too low (1.6) (7 times)
- Front wheel bearings have slight free play (2.3.5b) (6 times)
- Rear wheel bearings have slight free play (2.4.A.2c) (6 times)
- Exhaust is leaking but is not excessively noisey (7.1.1b) (6 times)
- Rear Brake pad(s) close to minimum limit (3.2.A1f(i)) (5 times)
Triumph Bonneville l pass rate by registration year
| Year | Vehicles | Tests | Pass rate | Avg mileage |
|---|---|---|---|---|
| 2020 | 1 | 1 | 100% | — |
| 2018 | 2 | 6 | 100% | 8,156 |
| 2017 | 1 | 7 | 71% | 16,032 |
| 2016 | 2 | 8 | 75% | 17,935 |
| 2013 | 1 | 1 | 100% | — |
| 2010 | 5 | 59 | 92% | 6,539 |
| 2009 | 2 | 24 | 92% | 148,024 |
| 2008 | 3 | 27 | 100% | 3,427 |
| 2007 | 4 | 35 | 89% | 11,260 |
| 2006 | 3 | 51 | 98% | 17,370 |
| 2005 | 2 | 18 | 100% | 8,724 |
| 2004 | 3 | 54 | 83% | 22,478 |
| 2003 | 1 | 17 | 71% | 8,696 |
| 2002 | 2 | 22 | 95% | 31,278 |
| 2000 | 2 | 6 | 100% | 23,678 |
| 1999 | 1 | 8 | 100% | 6,441 |
| 1998 | 1 | 7 | 100% | 25,141 |
| 1996 | 1 | 4 | 100% | 18,964 |
| 1994 | 1 | 2 | 100% | 12,380 |
| 1990 | 3 | 12 | 92% | 18,345 |
| 1989 | 1 | 6 | 100% | 7,075 |
| 1985 | 2 | 33 | 85% | 13,828 |
| 1983 | 5 | 17 | 82% | 14,875 |
| 1982 | 3 | 24 | 92% | 20,687 |
| 1981 | 8 | 71 | 90% | 21,353 |
| 1980 | 22 | 144 | 86% | 20,832 |
| 1979 | 17 | 100 | 83% | 30,867 |
| 1978 | 17 | 108 | 92% | 22,252 |
| 1977 | 12 | 91 | 90% | 17,643 |
| 1976 | 9 | 33 | 82% | 10,389 |
| 1975 | 5 | 29 | 79% | 30,564 |
| 1974 | 1 | 12 | 92% | 40,053 |
| 1973 | 3 | 20 | 80% | 19,101 |
| 1971 | 4 | 24 | 88% | 25,955 |
| 1970 | 8 | 44 | 95% | 26,620 |
| 1969 | 3 | 18 | 100% | 17,927 |
| 1968 | 4 | 11 | 100% | 16,937 |
| 1967 | 1 | 3 | 100% | 2,296 |
| 1966 | 1 | 4 | 100% | 10,345 |
| 1961 | 1 | 10 | 100% | 31,269 |
Triumph Bonneville l reliability FAQ
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