Sinnis GPX 125
Real ownership data from 213 UK GPX 125 motorcycles — mileage, MOT pass rates and the faults that actually come up, taken from DVSA test records rather than opinion.
Most common GPX 125 problems
Ranked by how often each fault appears in this model's MOT history.
| Fault | Severity | Share of faults |
|---|---|---|
| Chain and sprockets | dangerous | 10% |
| Lights and indicators | major | 7% |
| Brakes | major | 4% |
| Suspension | dangerous | 3% |
| Steering and head bearings | major | 2% |
| Controls and cables | major | 2% |
| Other | dangerous | 2% |
| Tyres | dangerous | 1% |
Advisories (wear noted but not failed) are excluded above; the most common is suspension.
GPX 125 mileage and reliability by year
Use this to judge whether a specific bike is high or low mileage for its age.
| YearYear | MedianMedian mileage | Mi/yrMiles/year | MOT passFirst-time pass | |
|---|---|---|---|---|
| 2024 | 82 | — | — | — |
| 2023 | 76 | 6,742 mi | 4,903 | 76.47% |
| 2022 | 53 | 6,869 mi | 2,080 | 76.79% |
GPX 125 questions, answered with data
What are the most common problems with the Sinnis GPX 125?
Across 213 UK examples, the most frequently recorded MOT faults are chain and sprockets (10% of all recorded faults), lights and indicators (7% of all recorded faults), brakes (4% of all recorded faults).
What is average mileage for a Sinnis GPX 125?
The median Sinnis GPX 125 in the UK has covered 6,798 miles, and typically rides about 2,181 miles a year. Half of all examples fall between 4,142 and 9,200 miles.
Is the Sinnis GPX 125 reliable?
77.03% of Sinnis GPX 125 MOT tests are passed first time, with an average of 1.16 faults recorded per test. This is measured from DVSA MOT records, not owner opinion.
Based on DVSA MOT test records for 213 Sinnis GPX 125 motorcycles registered in Great Britain and Northern Ireland. Contains public sector information licensed under the Open Government Licence v3.0.