MOT reliability
Triumph 21a
1 vehicles · 4 completed MOT tests analysed
75%
MOT pass rate
Based on 1 Triumph 21a vehicles and 4 completed MOT tests, the Triumph 21a has an overall 75% pass rate, with an average recorded mileage of 6,414 miles.
1
Vehicles
4
MOT tests
243
Avg miles / year
0.5
Faults per test
0%
Dangerous-fault share
Triumph 21a problem areas
Where faults occur most across all Triumph 21a MOT tests:
-
Other100%
Fuel types: Petrol (1)
Most common Triumph 21a MOT faults
These are the faults and advisories recorded most often across Triumph 21a MOT tests:
- Headlamp at least one does not illuminate on main beam (1.2.2a(ii)) (1 times)
- Rear position lamp does not illuminate immediately when it is switched on (1.1.3a) (1 times)
Triumph 21a pass rate by registration year
| Year | Vehicles | Tests | Pass rate | Avg mileage |
|---|---|---|---|---|
| 1964 | 1 | 4 | 75% | 6,414 |
Triumph 21a reliability FAQ
Across 1 Triumph 21a vehicles in our MOT data,
75% pass the MOT (a 25% failure rate), with about
0.5 faults or advisories recorded per test.
The most frequently recorded Triumph 21a MOT issues are:
Headlamp at least one does not illuminate on main beam (1.2.2a(ii)); Rear position lamp does not illuminate immediately when it is switched on (1.1.3a).
The typical Triumph 21a in our data has covered around
6,414 miles.
Compare the Triumph 21a
See how the Triumph 21a stacks up against other Triumph models on MOT reliability:
Check a specific Triumph 21a
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