Sinnis RSX 125
Real ownership data from 425 UK RSX 125 motorcycles — mileage, MOT pass rates and the faults that actually come up, taken from DVSA test records rather than opinion.
Most common RSX 125 problems
Ranked by how often each fault appears in this model's MOT history.
| Fault | Severity | Share of faults |
|---|---|---|
| Chain and sprockets | dangerous | 5.8% |
| Brake discs and pads | dangerous | 3.5% |
| Steering and head bearings | dangerous | 1.9% |
| Brakes | dangerous | 1.9% |
| Controls and cables | dangerous | 1.7% |
| Electrical | major | 1.5% |
| Lights and indicators | minor | 1.3% |
| Tyres | dangerous | 1.1% |
Advisories (wear noted but not failed) are excluded above; the most common is exhaust and emissions.
RSX 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 |
|---|---|---|---|---|
| 2021 | 39 | 8,677 mi | 1,762 | 47.06% |
| 2020 | 99 | 6,165 mi | 1,300 | 57.86% |
| 2019 | 107 | 8,561 mi | 1,512 | 55.86% |
| 2018 | 116 | 7,802 mi | 1,224 | 62.15% |
| 2017 | 61 | 10,626 mi | 1,515 | 60.51% |
RSX 125 questions, answered with data
What are the most common problems with the Sinnis RSX 125?
Across 425 UK examples, the most frequently recorded MOT faults are chain and sprockets (5.8% of all recorded faults), brake discs and pads (3.5% of all recorded faults), steering and head bearings (1.9% of all recorded faults).
What is average mileage for a Sinnis RSX 125?
The median Sinnis RSX 125 in the UK has covered 8,516 miles, and typically rides about 1,516 miles a year. Half of all examples fall between 4,332 and 12,260 miles.
Is the Sinnis RSX 125 reliable?
58.33% of Sinnis RSX 125 MOT tests are passed first time, with an average of 2.14 faults recorded per test. This is measured from DVSA MOT records, not owner opinion.
Based on DVSA MOT test records for 425 Sinnis RSX 125 motorcycles registered in Great Britain and Northern Ireland. Contains public sector information licensed under the Open Government Licence v3.0.