Suzuki SP370: MOT pass rate by registration year

Which SP370 years pass first time, and which fall short of the model's 79.6% average, from 599 DVSA tests.

1980

highest-passing year · 90.1%

1979

lowest-passing year · 76.5%

13.6pp

spread across 3 years

Pass rate by registration year

first-time pass rate · cohorts with 50 or more tests · registration year from first use date

Highest pass rate: 1980 (90.1% of 91 tests). Lowest: 1979 (76.5% of 353). Years more than two points below the model average: 1979.

Registered	Tests	First-time pass	vs model (79.6%)
1978	126	79.4%	-0.2 pp
1979	353	76.5%	-3.1 pp
1980	91	90.1%	+10.5 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

first-time pass rate by test year · 2006–2017

Questions

Which SP370 years have the lowest MOT pass rate?: 1979 registered examples pass first time less often than the Suzuki SP370 overall (79.6%); the 1979 cohort is lowest at 76.5% from 353 tests.
Which SP370 year has the highest MOT pass rate?: 1980, at 90.1% of 91 first tests (2005–2025).
How much does the SP370 pass rate vary by year?: 13.6 percentage points between the highest (1980, 90.1%) and lowest (1979, 76.5%) 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 SP370 reliability, failures and mileage · ranked #3668 of 5428 models· other Suzuki models: GSXR600, GSF600, GSXR750, GSF1200, GSXR1000, SV650S