Data as of: DVSA MOT results to 2025
Suzuki GT550: MOT pass rate by registration year
Which GT550 years pass first time, and which fall short of the model's 85.9% average, from 1,528 DVSA tests.
Pass rate by registration year
Highest pass rate: 1972 (91.3% of 207 tests). Lowest: 1971 (80.9% of 94). Years more than two points below the model average: 1971, 1975, 1977.
| Registered | Tests | First-time pass | vs model (85.9%) |
|---|---|---|---|
| 1971 | 94 | 80.9% | -5.0 pp |
| 1972 | 207 | 91.3% | +5.4 pp |
| 1973 | 87 | 88.5% | +2.6 pp |
| 1974 | 211 | 89.6% | +3.7 pp |
| 1975 | 243 | 83.1% | -2.8 pp |
| 1976 | 390 | 84.4% | -1.5 pp |
| 1977 | 202 | 82.2% | -3.7 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 GT550 years have the lowest MOT pass rate?
- 1971, 1975, 1977 registered examples pass first time less often than the Suzuki GT550 overall (85.9%); the 1971 cohort is lowest at 80.9% from 94 tests.
- Which GT550 year has the highest MOT pass rate?
- 1972, at 91.3% of 207 first tests (2005–2025). Years more than two points above the model average: 1972, 1973, 1974.
- How much does the GT550 pass rate vary by year?
- 10.4 percentage points between the highest (1972, 91.3%) and lowest (1971, 80.9%) 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: Suzuki GT550 reliability, failures and mileage · ranked #2232 of 5428 models· other Suzuki models: GSXR600, GSF600, GSXR750, GSF1200, GSXR1000, SV650S