MOT reliability
Triumph 3ta twenty one
4 vehicles · 20 completed MOT tests analysed
95%
MOT pass rate
Based on 4 Triumph 3ta twenty one vehicles and 20 completed MOT tests, the Triumph 3ta twenty one has an overall 95% pass rate, with an average recorded mileage of 30,144 miles.
4
Vehicles
20
MOT tests
177
Avg miles / year
0.2
Faults per test
0%
Dangerous-fault share
Triumph 3ta twenty one problem areas
Where faults occur most across all Triumph 3ta twenty one MOT tests:
-
Other100%
-
Steering20%
Fuel types: Petrol (4)
Most common Triumph 3ta twenty one MOT faults
These are the faults and advisories recorded most often across Triumph 3ta twenty one MOT tests:
- Front Tyre worn close to the legal limit (4.1.3(ii)) (1 times)
- Rear Tyre worn close to the legal limit (4.1.3(ii)) (1 times)
- Rear Tyre tread depth is below minimum requirements of 1.0mm (4.1.3(ii)) (1 times)
- Steering headbearing has slight free play (2.2.2) (1 times)
- Steering movement slightly 'notchy' (2.2.1b) (1 times)
- Front Roller brake test indicates slight fluctuation of brake effort (3.3.A1d) (1 times)
Triumph 3ta twenty one pass rate by registration year
| Year | Vehicles | Tests | Pass rate | Avg mileage |
|---|---|---|---|---|
| 1962 | 1 | 3 | 100% | 48,237 |
| 1961 | 1 | 4 | 100% | 1,355 |
| 1958 | 2 | 13 | 92% | 35,493 |
Triumph 3ta twenty one reliability FAQ
Across 4 Triumph 3ta twenty one vehicles in our MOT data,
95% pass the MOT (a 5% failure rate), with about
0.2 faults or advisories recorded per test.
The most frequently recorded Triumph 3ta twenty one MOT issues are:
Front Tyre worn close to the legal limit (4.1.3(ii)); Rear Tyre worn close to the legal limit (4.1.3(ii)); Rear Tyre tread depth is below minimum requirements of 1.0mm (4.1.3(ii)).
The typical Triumph 3ta twenty one in our data has covered around
30,144 miles.
Compare the Triumph 3ta twenty one
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