MOT reliability
Triumph Bonny
12 vehicles · 74 completed MOT tests analysed
92%
MOT pass rate
Based on 12 Triumph Bonny vehicles and 74 completed MOT tests, the Triumph Bonny has an overall 92% pass rate, with an average recorded mileage of 31,390 miles.
12
Vehicles
74
MOT tests
1,343
Avg miles / year
0.3
Faults per test
0%
Dangerous-fault share
Triumph Bonny problem areas
Where faults occur most across all Triumph Bonny MOT tests:
-
Other100%
-
Steering21%
-
Brakes21%
-
Seatbelts & equipment5%
Triumph Bonny pass rate by age
| Age (years) | Tests | Pass rate |
|---|---|---|
| 1 | 1 | 100% |
| 2 | 2 | 50% |
| 3 | 1 | 100% |
| 5 | 1 | 100% |
| 6 | 1 | 100% |
| 7 | 1 | 100% |
| 8 | 1 | 100% |
| 14 | 1 | 100% |
| 16 | 1 | 100% |
| 18 | 2 | 100% |
| 19 | 2 | 50% |
| 20 | 2 | 100% |
Fuel types: Petrol (12)
Most common Triumph Bonny MOT faults
These are the faults and advisories recorded most often across Triumph Bonny MOT tests:
- Wheel alignment slightly misaligned. (2.5.1) (4 times)
- Rear Roller brake test indicates slight fluctuation of brake effort (3.3.A1d) (3 times)
- Front Roller brake test indicates slight fluctuation of brake effort (3.3.A1d) (2 times)
- Handlebar mounting slightly deteriorated (2.1.1d) (2 times)
- Headlamp aim too high (1.6) (2 times)
- left hand throttle cable slightly deteriorated (2 times)
- Rear Stop lamp does not illuminate immediately a brake applies (1.3.1a) (1 times)
- Front Front suspension has a slightly reduced damping effect (2.3.6c) (1 times)
- Front Roller brake test indicates a slightly grabbing brake (3.3.A1b) (1 times)
- Front Tyre worn close to the legal limit (4.1.3(ii)) (1 times)
- Rear Roller brake test indicates a slightly juddering brake (3.3.A1b) (1 times)
- Rear Wheel spoke slightly loose. (4.2.1b) (1 times)
- Headlamp aim too low (1.6) (1 times)
- Stop lamp does not illuminate immediately a brake applies (1.3.1a) (1 times)
- Front position lamp does not illuminate immediately when switched on (1.1.3a) (1 times)
Triumph Bonny pass rate by registration year
| Year | Vehicles | Tests | Pass rate | Avg mileage |
|---|---|---|---|---|
| 2009 | 1 | 9 | 89% | 1,877 |
| 1993 | 1 | 3 | 100% | — |
| 1992 | 1 | 10 | 90% | 33,916 |
| 1978 | 4 | 21 | 95% | 33,763 |
| 1976 | 2 | 10 | 80% | 48,730 |
| 1973 | 1 | 7 | 86% | 26,387 |
| 1965 | 1 | 13 | 100% | 23,594 |
| 1962 | 1 | 1 | 100% | 27,009 |
Triumph Bonny reliability FAQ
Across 12 Triumph Bonny vehicles in our MOT data,
92% pass the MOT (a 8% failure rate), with about
0.3 faults or advisories recorded per test.
The most frequently recorded Triumph Bonny MOT issues are:
Wheel alignment slightly misaligned. (2.5.1); 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 Bonny in our data has covered around
31,390 miles.
Compare the Triumph Bonny
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