MOT reliability
Triumph Twenty one 3ta
5 vehicles · 20 completed MOT tests analysed
95%
MOT pass rate
Based on 5 Triumph Twenty one 3ta vehicles and 20 completed MOT tests, the Triumph Twenty one 3ta has an overall 95% pass rate, with an average recorded mileage of 82,868 miles.
5
Vehicles
20
MOT tests
175
Avg miles / year
0.4
Faults per test
0%
Dangerous-fault share
Triumph Twenty one 3ta problem areas
Where faults occur most across all Triumph Twenty one 3ta MOT tests:
-
Steering100%
Fuel types: Petrol (5)
Most common Triumph Twenty one 3ta MOT faults
These are the faults and advisories recorded most often across Triumph Twenty one 3ta MOT tests:
- Steering headbearing has slight free play (2.2.2) (4 times)
- Rear Wheel alignment slightly misaligned. (2.5.1) (2 times)
- Nearside Front shock absorber seal failed and leaking oil (2.3.3) (1 times)
- Offside Front shock absorber seal failed and leaking oil (2.3.3) (1 times)
Triumph Twenty one 3ta pass rate by registration year
| Year | Vehicles | Tests | Pass rate | Avg mileage |
|---|---|---|---|---|
| 1967 | 1 | 5 | 80% | 6,496 |
| 1962 | 4 | 15 | 100% | 101,961 |
Triumph Twenty one 3ta reliability FAQ
Across 5 Triumph Twenty one 3ta vehicles in our MOT data,
95% pass the MOT (a 5% failure rate), with about
0.4 faults or advisories recorded per test.
The most frequently recorded Triumph Twenty one 3ta MOT issues are:
Steering headbearing has slight free play (2.2.2); Rear Wheel alignment slightly misaligned. (2.5.1); Nearside Front shock absorber seal failed and leaking oil (2.3.3).
The typical Triumph Twenty one 3ta in our data has covered around
82,868 miles.
Compare the Triumph Twenty one 3ta
See how the Triumph Twenty one 3ta stacks up against other Triumph models on MOT reliability:
Check a specific Triumph Twenty one 3ta
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