BIKERELIABILITY Reg check
Registration-year report · 2005–2025

Data as of: DVSA MOT results to 2025

Royal Alloy GP 125 Ac: MOT pass rate by registration year

Which GP 125 Ac years pass first time, and which fall short of the model's 87.6% average, from 965 DVSA tests.

2020
highest-passing year · 90.3%
2019
lowest-passing year · 85.4%
4.9pp
spread across 4 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: 2020 (90.3% of 175 tests). Lowest: 2019 (85.4% of 376). Years more than two points below the model average: 2019.

84%88%91%2018: 88.4% pass (225 tests)2019: 85.4% pass (376 tests)2020: 90.3% pass (175 tests)2021: 88.3% pass (188 tests)201820202021
RegisteredTestsFirst-time passvs model (87.6%)
2018 225 88.4% +0.8 pp
2019 376 85.4% -2.2 pp
2020 175 90.3% +2.7 pp
2021 188 88.3% +0.7 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

first-time pass rate by test year · 2021–2025
85%87%90%2021: 88.6% pass (44 tests)2022: 88.1% pass (168 tests)2023: 88.9% pass (217 tests)2024: 88.0% pass (266 tests)2025: 85.6% pass (270 tests)20212025

Questions

Which GP 125 Ac years have the lowest MOT pass rate?
2019 registered examples pass first time less often than the Royal Alloy GP 125 Ac overall (87.6%); the 2019 cohort is lowest at 85.4% from 376 tests.
Which GP 125 Ac year has the highest MOT pass rate?
2020, at 90.3% of 175 first tests (2005–2025).
How much does the GP 125 Ac pass rate vary by year?
4.9 percentage points between the highest (2020, 90.3%) and lowest (2019, 85.4%) 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: Royal Alloy GP 125 Ac reliability, failures and mileage · ranked #1725 of 5428 models· other Royal Alloy models: GT 125I, GP 300 S, GP 200 LC, GT 200 LC, TG 300 LC, GP 300 LC E5