Triumph Sprint vs Triumph Unknown: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Triumph Sprint
87%
MOT pass rate · 12,819 vehicles
Triumph Unknown
89%
MOT pass rate · 65,927 vehicles
More reliable
Verdict: On MOT pass rate, the Triumph Unknown is the more reliable of the two — 89% pass first time versus 87%. It's one signal among several; check the full breakdown below.
Head to head
| Measure | Triumph Sprint | Triumph Unknown |
|---|---|---|
| MOT pass rate | 87% | 89% ✓ |
| MOT failure rate | 13% | 11% ✓ |
| Faults & advisories per test | 0.7 | 0.6 ✓ |
| Dangerous-fault share | 2% | 2% |
| Average mileage | 32,879 mi | 16,601 mi |
| Sample size (vehicles) | 12,819 | 65,927 |
Most common faults
Triumph Sprint
- Front Tyre worn close to the legal limit (4.1.3(ii))
- Rear Tyre worn close to the legal limit (4.1.3(ii))
- Front Roller brake test indicates slight fluctuation of brake effort (3.3.A1d)
- Rear Brake pad(s) close to minimum limit (3.2.A1f(i))
- Front Tyre worn close to the legal limit (5.2.3 (e))
- Drive chain slightly loose (6.2.1d)
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 Unknown is the more reliable of the two — 89% pass first time versus 87%. It's one signal among several; check the full breakdown below.
Full Triumph Sprint 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.