SYM Jet 4 125 E4: MOT pass rate by registration year

Which Jet 4 125 E4 years pass first time, and which fall short of the model's 72.0% average, from 1,207 DVSA tests.

2021

highest-passing year · 73.3%

2019

lowest-passing year · 70.8%

2.5pp

spread across 5 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: 2021 (73.3% of 75 tests). Lowest: 2019 (70.8% of 267).

Registered	Tests	First-time pass	vs model (72.0%)
2017	309	72.5%	+0.5 pp
2018	338	72.5%	+0.5 pp
2019	267	70.8%	-1.2 pp
2020	212	71.7%	-0.3 pp
2021	75	73.3%	+1.3 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 · 2020–2025

Questions

Which Jet 4 125 E4 years have the lowest MOT pass rate?: none: no registration year of the SYM Jet 4 125 E4 falls more than two points under the model's 72.0% overall pass rate.
Which Jet 4 125 E4 year has the highest MOT pass rate?: 2021, at 73.3% of 75 first tests (2005–2025).
How much does the Jet 4 125 E4 pass rate vary by year?: 2.5 percentage points between the highest (2021, 73.3%) and lowest (2019, 70.8%) 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: SYM Jet 4 125 E4 reliability, failures and mileage · ranked #4581 of 5428 models· other SYM models: Jet, DD50, City Hopper, Jet 50 - Euro X, Fiddle, Shark