Data as of: DVSA MOT results to 2025
Derbi Terra: MOT pass rate by registration year
Which Terra years pass first time, and which fall short of the model's 71.1% average, from 744 DVSA tests.
Pass rate by registration year
Highest pass rate: 2015 (76.5% of 81 tests). Lowest: 2009 (65.3% of 101). Years more than two points below the model average: 2009.
| Registered | Tests | First-time pass | vs model (71.1%) |
|---|---|---|---|
| 2008 | 71 | 71.8% | +0.7 pp |
| 2009 | 101 | 65.3% | -5.8 pp |
| 2010 | 64 | 71.9% | +0.8 pp |
| 2015 | 81 | 76.5% | +5.4 pp |
| 2016 | 290 | 74.5% | +3.4 pp |
Older cohorts are survivors: the worst examples have already left the road, which tends to lift the earliest years. A first-time MOT pass is a roadworthiness check, not a full mechanical inspection.
Pass rate over time
Questions
- Which Terra years have the lowest MOT pass rate?
- 2009 registered examples pass first time less often than the Derbi Terra overall (71.1%); the 2009 cohort is lowest at 65.3% from 101 tests.
- Which Terra year has the highest MOT pass rate?
- 2015, at 76.5% of 81 first tests (2005–2025). Years more than two points above the model average: 2015, 2016.
- How much does the Terra pass rate vary by year?
- 11.2 percentage points between the highest (2015, 76.5%) and lowest (2009, 65.3%) cohorts with at least 50 tests. Older cohorts are survivors: the worst examples have already left the road, which tends to lift the earliest years.
Full report: Derbi Terra reliability, failures and mileage · ranked #4652 of 5428 models· other Derbi models: Senda, GPR50-R, GPR 50, Atlantis, Predator, Senda SM