Triumph Street vs Triumph Stag: MOT reliability compared
Updated 05 September 2026.
9.9%
Triumph Street MOT failure rate, 12.7 pts lower than Triumph Stag
Triumph Street is the more reliable MOT performer: 9.9% of Triumph Street MOTs fail versus 22.6% for Triumph Stag, a 12.7 point gap.
| Metric | Triumph Street | Triumph Stag |
|---|---|---|
| MOT failure rate | 9.9% | 22.6% |
| Tests analysed | 119,782 | 87,808 |
| Most common failure | Lamps & electrical (21.9%) | Lamps & electrical (40.6%) |
Questions and answers
Which is more reliable, Triumph Street or Triumph Stag?
Triumph Street is the more reliable MOT performer: 9.9% of Triumph Street MOTs fail versus 22.6% for Triumph Stag, a 12.7 point gap.
What is the MOT failure rate of the Triumph Street?
9.9% of Triumph Street MOT tests result in a failure, from 119,782 tests.
What is the MOT failure rate of the Triumph Stag?
22.6% of Triumph Stag MOT tests result in a failure, from 87,808 tests.