MOT reliability
Triumph Bon
6 vehicles · 36 completed MOT tests analysed
94%
MOT pass rate
Based on 6 Triumph Bon vehicles and 36 completed MOT tests, the Triumph Bon has an overall 94% pass rate, with an average recorded mileage of 20,120 miles.
6
Vehicles
36
MOT tests
240
Avg miles / year
0.1
Faults per test
0%
Dangerous-fault share
Triumph Bon problem areas
Where faults occur most across all Triumph Bon MOT tests:
-
Other125%
-
Lamps & electrical25%
Triumph Bon pass rate by age
| Age (years) | Tests | Pass rate |
|---|
Fuel types: Petrol (6)
Most common Triumph Bon MOT faults
These are the faults and advisories recorded most often across Triumph Bon MOT tests:
- Roller brake test Higher brake efficiency normally obtainable. (3.3.A2a) (1 times)
- Roller brake test Higher brake efficiency normally obtainable. (3.3.A2b) (1 times)
- Front Front wheel bearings have slight free play (2.3.5b) (1 times)
- Drive chain slightly loose (6.2.1d) (1 times)
- Rear Tyre tread depth is below minimum requirements of 1.0mm (4.1.3(ii)) (1 times)
- Headlamp aim too high (4.1.2 (a)) (1 times)
Triumph Bon pass rate by registration year
| Year | Vehicles | Tests | Pass rate | Avg mileage |
|---|---|---|---|---|
| 1983 | 1 | 17 | 88% | 36,830 |
| 1979 | 1 | 4 | 100% | 8,023 |
| 1977 | 1 | 1 | 100% | 3,725 |
| 1973 | 1 | 1 | 100% | 22,037 |
| 1971 | 1 | 8 | 100% | 29,989 |
| 1969 | 1 | 5 | 100% | — |
Triumph Bon reliability FAQ
Across 6 Triumph Bon vehicles in our MOT data,
94% pass the MOT (a 6% failure rate), with about
0.1 faults or advisories recorded per test.
The most frequently recorded Triumph Bon MOT issues are:
Roller brake test Higher brake efficiency normally obtainable. (3.3.A2a); Roller brake test Higher brake efficiency normally obtainable. (3.3.A2b); Front Front wheel bearings have slight free play (2.3.5b).
The typical Triumph Bon in our data has covered around
20,120 miles.
Compare the Triumph Bon
See how the Triumph Bon stacks up against other Triumph models on MOT reliability:
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