Triumph Strret triple vs Triumph Unknown: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Triumph Strret triple
93%
MOT pass rate · 1 vehicles
Triumph Unknown
89%
MOT pass rate · 65,927 vehicles
Verdict: On MOT pass rate the Triumph Strret triple (93%) and Triumph Unknown (89%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Head to head
| Measure | Triumph Strret triple | Triumph Unknown |
|---|---|---|
| MOT pass rate | 93% ✓ | 89% |
| MOT failure rate | 7% ✓ | 11% |
| Faults & advisories per test | 0.4 ✓ | 0.6 |
| Dangerous-fault share | 0% ✓ | 2% |
| Average mileage | 19,573 mi | 16,601 mi |
| Sample size (vehicles) | 1 | 65,927 |
Most common faults
Triumph Strret triple
- Exhaust noisy (8.1.1 (a))
- Front Brake pad(s) less than 1.5 mm thick (3.2.A1f(i))
- Front Tyre worn close to the legal limit (4.1.3(ii))
- Front Tyre worn close to the legal limit (5.2.3 (e))
Triumph Unknown
- Exhaust noisy (8.1.1 (a))
- Exhaust noisy (7.1.2)
- Front Roller brake test indicates slight fluctuation of brake effort (3.3.A1d)
- COVID-19 6 MONTH EXTENSION
- Rear Tyre worn close to the legal limit (5.2.3 (e))
- Steering headbearing has slight free play (2.2.2)
Reliability FAQ
On MOT pass rate the Triumph Strret triple (93%) and Triumph Unknown (89%) are very close — weigh the individual measures below, and remember condition depends on age, mileage and upkeep.
Full Triumph Strret triple report Full Triumph Unknown report Most reliable cars
Pass rates are computed over completed (pass/fail) MOT tests. Reliability also depends on age, mileage and upkeep — see each model's page for the full picture.