Royal Alloy GP 125
Real ownership data from 1,553 UK GP 125 motorcycles — mileage, MOT pass rates and the faults that actually come up, taken from DVSA test records rather than opinion.
Most common GP 125 problems
Ranked by how often each fault appears in this model's MOT history.
| Fault | Severity | Share of faults |
|---|---|---|
| Suspension | dangerous | 25.7% |
| Other | dangerous | 9.6% |
| Steering and head bearings | dangerous | 7.4% |
| Brakes | major | 5.2% |
| Lights and indicators | dangerous | 4.4% |
| Tyres | major | 3.7% |
| Wheels | dangerous | 3% |
| Brake discs and pads | dangerous | 1.5% |
Advisories (wear noted but not failed) are excluded above; the most common is lights and indicators.
GP 125 mileage and reliability by year
Use this to judge whether a specific bike is high or low mileage for its age.
| Year | Examples | Median mileage | Miles/year | First-time pass |
|---|---|---|---|---|
| 2026 | 101 | — | — | — |
| 2025 | 137 | — | — | — |
| 2024 | 196 | — | — | — |
| 2023 | 186 | 2,108 mi | 1,020 | 91.3% |
| 2022 | 216 | 2,582 mi | 376 | 91.43% |
| 2021 | 232 | 3,013 mi | 484 | 88.26% |
| 2020 | 190 | 2,777 mi | 369 | 88.1% |
| 2019 | 202 | 3,334 mi | 469 | 85.1% |
| 2018 | 93 | 3,466 mi | 394 | 89.24% |
GP 125 questions, answered with data
What are the most common problems with the Royal Alloy GP 125?
Across 1,553 UK examples, the most frequently recorded MOT faults are suspension (25.7% of all recorded faults), other (9.6% of all recorded faults), steering and head bearings (7.4% of all recorded faults).
What is average mileage for a Royal Alloy GP 125?
The median Royal Alloy GP 125 in the UK has covered 2,936 miles, and typically rides about 412 miles a year. Half of all examples fall between 1,568 and 5,047 miles.
Is the Royal Alloy GP 125 reliable?
87.97% of Royal Alloy GP 125 MOT tests are passed first time, with an average of 0.06 faults recorded per test. This is measured from DVSA MOT records, not owner opinion.
Based on DVSA MOT test records for 1,553 Royal Alloy GP 125 motorcycles registered in Great Britain and Northern Ireland. Contains public sector information licensed under the Open Government Licence v3.0.